402828252 has 24 divisors (see below), whose sum is σ = 947337216. Its totient is φ = 133218288.

The previous prime is 402828193. The next prime is 402828269. The reversal of 402828252 is 252828204.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 130638 + ... + 133685.

It is an arithmetic number, because the mean of its divisors is an integer number (39472384).

Almost surely, 2^402828252 is an apocalyptic number.

It is an amenable number.

402828252 is an abundant number, since it is smaller than the sum of its proper divisors (544508964).

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

402828252 is a wasteful number, since it uses less digits than its factorization.

402828252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264457 (or 264455 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 402828252 is about 20070.5817553951. The cubic root of 402828252 is about 738.5387844442.

The spelling of 402828252 in words is "four hundred two million, eight hundred twenty-eight thousand, two hundred fifty-two".