252802780 has 24 divisors (see below), whose sum is σ = 531321840. Its totient is φ = 101038080.

The previous prime is 252802769. The next prime is 252802783. The reversal of 252802780 is 87208252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252802783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23695 + ... + 32665.

It is an arithmetic number, because the mean of its divisors is an integer number (22138410).

Almost surely, 2^252802780 is an apocalyptic number.

252802780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252802780 is an abundant number, since it is smaller than the sum of its proper divisors (278519060).

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

252802780 is a wasteful number, since it uses less digits than its factorization.

252802780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10389 (or 10387 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 252802780 is about 15899.7729543538. The cubic root of 252802780 is about 632.3059693234.

The spelling of 252802780 in words is "two hundred fifty-two million, eight hundred two thousand, seven hundred eighty".