402774052 has 12 divisors (see below), whose sum is σ = 707881356. Its totient is φ = 200522240.

The previous prime is 402774049. The next prime is 402774079. The reversal of 402774052 is 250477204.

It can be written as a sum of positive squares in 2 ways, for example, as 260305956 + 142468096 = 16134^2 + 11936^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215149 + ... + 217012.

It is an arithmetic number, because the mean of its divisors is an integer number (58990113).

Almost surely, 2^402774052 is an apocalyptic number.

It is an amenable number.

402774052 is a deficient number, since it is larger than the sum of its proper divisors (305107304).

402774052 is a wasteful number, since it uses less digits than its factorization.

402774052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432398 (or 432396 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 402774052 is about 20069.2314750715. The cubic root of 402774052 is about 738.5056598248.

The spelling of 402774052 in words is "four hundred two million, seven hundred seventy-four thousand, fifty-two".