252406146 has 24 divisors (see below), whose sum is σ = 532784304. Its totient is φ = 79706520.

The previous prime is 252406109. The next prime is 252406153. The reversal of 252406146 is 641604252.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56100 + ... + 60431.

It is an arithmetic number, because the mean of its divisors is an integer number (22199346).

Almost surely, 2^252406146 is an apocalyptic number.

252406146 is an abundant number, since it is smaller than the sum of its proper divisors (280378158).

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

252406146 is a wasteful number, since it uses less digits than its factorization.

252406146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116574 (or 116555 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 252406146 is about 15887.2951127623. The cubic root of 252406146 is about 631.9751115152.

The spelling of 252406146 in words is "two hundred fifty-two million, four hundred six thousand, one hundred forty-six".