252749100 has 36 divisors (see below), whose sum is σ = 731288264. Its totient is φ = 67399680.

The previous prime is 252749099. The next prime is 252749111. The reversal of 252749100 is 1947252.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420949 + ... + 421548.

Almost surely, 2^252749100 is an apocalyptic number.

252749100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252749100 is an abundant number, since it is smaller than the sum of its proper divisors (478539164).

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

252749100 is a wasteful number, since it uses less digits than its factorization.

252749100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842514 (or 842507 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 252749100 is about 15898.0847903136. The cubic root of 252749100 is about 632.2612116575.

The spelling of 252749100 in words is "two hundred fifty-two million, seven hundred forty-nine thousand, one hundred".