3130405200 has 180 divisors, whose sum is σ = 11699194780. Its totient is φ = 770549760.

The previous prime is 3130405193. The next prime is 3130405207. The reversal of 3130405200 is 25040313.

3130405200 is a `hidden beast` number, since 31 + 30 + 405 + 200 = 666.

It is an interprime number because it is at equal distance from previous prime (3130405193) and next prime (3130405207).

It can be written as a sum of positive squares in 6 ways, for example, as 420578064 + 2709827136 = 20508^2 + 52056^2 .

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130405207) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13356 + ... + 80244.

Almost surely, 2^3130405200 is an apocalyptic number.

3130405200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3130405200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5849597390).

3130405200 is an abundant number, since it is smaller than the sum of its proper divisors (8568789580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3130405200 is a wasteful number, since it uses less digits than its factorization.

3130405200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66926 (or 66912 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3130405200 is about 55950.0241286811. The cubic root of 3130405200 is about 1462.8513116150.

Adding to 3130405200 its reverse (25040313), we get a palindrome (3155445513).

The spelling of 3130405200 in words is "three billion, one hundred thirty million, four hundred five thousand, two hundred".