249599238 has 48 divisors (see below), whose sum is σ = 611277120. Its totient is φ = 67559184.

The previous prime is 249599227. The next prime is 249599239. The reversal of 249599238 is 832995942.

It is a happy number.

It is a super-2 number, since 2×249599238² = 124599559220361288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249599239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16756 + ... + 27927.

It is an arithmetic number, because the mean of its divisors is an integer number (12734940).

Almost surely, 2^249599238 is an apocalyptic number.

249599238 is an abundant number, since it is smaller than the sum of its proper divisors (361677882).

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

249599238 is a wasteful number, since it uses less digits than its factorization.

249599238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44721 (or 44714 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 51.

The square root of 249599238 is about 15798.7100106306. The cubic root of 249599238 is about 629.6237259284.

The spelling of 249599238 in words is "two hundred forty-nine million, five hundred ninety-nine thousand, two hundred thirty-eight".