252827840 has 28 divisors (see below), whose sum is σ = 602047056. Its totient is φ = 101131008.

The previous prime is 252827837. The next prime is 252827857. The reversal of 252827840 is 48728252.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 252827794 and 252827803.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394724 + ... + 395363.

Almost surely, 2^252827840 is an apocalyptic number.

252827840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252827840 is an abundant number, since it is smaller than the sum of its proper divisors (349219216).

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

252827840 is an equidigital number, since it uses as much as digits as its factorization.

252827840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790104 (or 790094 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 252827840 is about 15900.5609963925. The cubic root of 252827840 is about 632.3268618469.

The spelling of 252827840 in words is "two hundred fifty-two million, eight hundred twenty-seven thousand, eight hundred forty".