252408042 has 16 divisors (see below), whose sum is σ = 560906880. Its totient is φ = 84135996.

The previous prime is 252408031. The next prime is 252408047. The reversal of 252408042 is 240804252.

It is a happy number.

252408042 is a `hidden beast` number, since 252 + 408 + 0 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 252407997 and 252408015.

It is not an unprimeable number, because it can be changed into a prime (252408047) 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, 2337058 + ... + 2337165.

It is an arithmetic number, because the mean of its divisors is an integer number (35056680).

Almost surely, 2^252408042 is an apocalyptic number.

252408042 is an abundant number, since it is smaller than the sum of its proper divisors (308498838).

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

252408042 is a wasteful number, since it uses less digits than its factorization.

252408042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4674234 (or 4674228 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 252408042 is about 15887.3547829713. The cubic root of 252408042 is about 631.9766939144.

The spelling of 252408042 in words is "two hundred fifty-two million, four hundred eight thousand, forty-two".