402252524 has 12 divisors (see below), whose sum is σ = 708604848. Its totient is φ = 199794000.

The previous prime is 402252511. The next prime is 402252547. The reversal of 402252524 is 425252204.

It is a junction number, because it is equal to n+sod(n) for n = 402252493 and 402252502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332387 + ... + 333594.

It is an arithmetic number, because the mean of its divisors is an integer number (59050404).

Almost surely, 2^402252524 is an apocalyptic number.

It is an amenable number.

402252524 is a deficient number, since it is larger than the sum of its proper divisors (306352324).

402252524 is a wasteful number, since it uses less digits than its factorization.

402252524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666136 (or 666134 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 402252524 is about 20056.2340433093. The cubic root of 402252524 is about 738.1867732316.

The spelling of 402252524 in words is "four hundred two million, two hundred fifty-two thousand, five hundred twenty-four".