252162906 has 8 divisors (see below), whose sum is σ = 504325824. Its totient is φ = 84054300.

The previous prime is 252162901. The next prime is 252162913. The reversal of 252162906 is 609261252.

It is a sphenic number, since it is the product of 3 distinct primes.

252162906 is an admirable number.

It is a super-2 number, since 2×252162906² = 127172262324729672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (252162901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21013570 + ... + 21013581.

It is an arithmetic number, because the mean of its divisors is an integer number (63040728).

Almost surely, 2^252162906 is an apocalyptic number.

252162906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

252162906 is a wasteful number, since it uses less digits than its factorization.

252162906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42027156.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 252162906 is about 15879.6380941129. The cubic root of 252162906 is about 631.7720379705.

The spelling of 252162906 in words is "two hundred fifty-two million, one hundred sixty-two thousand, nine hundred six".