245412200 has 72 divisors (see below), whose sum is σ = 627231990. Its totient is φ = 89232000.

The previous prime is 245412179. The next prime is 245412247. The reversal of 245412200 is 2214542.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 141657604 + 103754596 = 11902^2 + 10186^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19130 + ... + 29270.

Almost surely, 2^245412200 is an apocalyptic number.

245412200 is a gapful number since it is divisible by the number (20) 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 245412200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313615995).

245412200 is an abundant number, since it is smaller than the sum of its proper divisors (381819790).

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

245412200 is a wasteful number, since it uses less digits than its factorization.

245412200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10179 (or 10159 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 245412200 is about 15665.6375548523. The cubic root of 245412200 is about 626.0831989369.

Adding to 245412200 its reverse (2214542), we get a palindrome (247626742).

The spelling of 245412200 in words is "two hundred forty-five million, four hundred twelve thousand, two hundred".