252720024 has 32 divisors (see below), whose sum is σ = 632344320. Its totient is φ = 84167456.

The previous prime is 252719993. The next prime is 252720037. The reversal of 252720024 is 420027252.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 252719976 and 252720003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28957 + ... + 36659.

It is an arithmetic number, because the mean of its divisors is an integer number (19760760).

Almost surely, 2^252720024 is an apocalyptic number.

252720024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

252720024 is an abundant number, since it is smaller than the sum of its proper divisors (379624296).

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

252720024 is a wasteful number, since it uses less digits than its factorization.

252720024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9079 (or 9075 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 252720024 is about 15897.1703142415. The cubic root of 252720024 is about 632.2369658316.

Adding to 252720024 its reverse (420027252), we get a palindrome (672747276).

The spelling of 252720024 in words is "two hundred fifty-two million, seven hundred twenty thousand, twenty-four".