252074228 has 18 divisors (see below), whose sum is σ = 513151506. Its totient is φ = 108031728.

The previous prime is 252074203. The next prime is 252074233. The reversal of 252074228 is 822470252.

252074228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 247181284 + 4892944 = 15722^2 + 2212^2 .

It is a junction number, because it is equal to n+sod(n) for n = 252074194 and 252074203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 642851 + ... + 643242.

It is an arithmetic number, because the mean of its divisors is an integer number (28508417).

Almost surely, 2^252074228 is an apocalyptic number.

252074228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

252074228 is an abundant number, since it is smaller than the sum of its proper divisors (261077278).

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

252074228 is a wasteful number, since it uses less digits than its factorization.

252074228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286111 (or 1286102 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 252074228 is about 15876.8456564898. The cubic root of 252074228 is about 631.6979709711.

The spelling of 252074228 in words is "two hundred fifty-two million, seventy-four thousand, two hundred twenty-eight".