3139198920 has 576 divisors, whose sum is σ = 12792911040. Its totient is φ = 658022400.

The previous prime is 3139198919. The next prime is 3139198921. The reversal of 3139198920 is 298919313.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3139198919) and next prime (3139198921).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (3139198921) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 14877615 + ... + 14877825.

It is an arithmetic number, because the mean of its divisors is an integer number (22209915).

Almost surely, 2^3139198920 is an apocalyptic number.

3139198920 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 3139198920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6396455520).

3139198920 is an abundant number, since it is smaller than the sum of its proper divisors (9653712120).

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

3139198920 is a wasteful number, since it uses less digits than its factorization.

3139198920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 3139198920 is about 56028.5545057161. The cubic root of 3139198920 is about 1464.2198115707.

The spelling of 3139198920 in words is "three billion, one hundred thirty-nine million, one hundred ninety-eight thousand, nine hundred twenty".