252840180 has 24 divisors (see below), whose sum is σ = 707952672. Its totient is φ = 67424032.

The previous prime is 252840149. The next prime is 252840187. The reversal of 252840180 is 81048252.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252840187) 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, 2106942 + ... + 2107061.

It is an arithmetic number, because the mean of its divisors is an integer number (29498028).

Almost surely, 2^252840180 is an apocalyptic number.

252840180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252840180 is an abundant number, since it is smaller than the sum of its proper divisors (455112492).

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

252840180 is a wasteful number, since it uses less digits than its factorization.

252840180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214015 (or 4214013 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 252840180 is about 15900.9490282813. The cubic root of 252840180 is about 632.3371491983.

The spelling of 252840180 in words is "two hundred fifty-two million, eight hundred forty thousand, one hundred eighty".