252428406 has 16 divisors (see below), whose sum is σ = 506179584. Its totient is φ = 83922344.

The previous prime is 252428401. The next prime is 252428411. The reversal of 252428406 is 604824252.

252428406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (252428401) and next prime (252428411).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252428401) 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, 52626 + ... + 57221.

It is an arithmetic number, because the mean of its divisors is an integer number (31636224).

Almost surely, 2^252428406 is an apocalyptic number.

252428406 is an abundant number, since it is smaller than the sum of its proper divisors (253751178).

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

252428406 is a wasteful number, since it uses less digits than its factorization.

252428406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110235.

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 252428406 is about 15887.9956570991. The cubic root of 252428406 is about 631.9936891828.

The spelling of 252428406 in words is "two hundred fifty-two million, four hundred twenty-eight thousand, four hundred six".