402764216 has 16 divisors (see below), whose sum is σ = 760949640. Its totient is φ = 199844320.

The previous prime is 402764191. The next prime is 402764233. The reversal of 402764216 is 612467204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191111 + ... + 193206.

Almost surely, 2^402764216 is an apocalyptic number.

It is an amenable number.

402764216 is a deficient number, since it is larger than the sum of its proper divisors (358185424).

402764216 is a wasteful number, since it uses less digits than its factorization.

402764216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384454 (or 384450 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 402764216 is about 20068.9864218400. The cubic root of 402764216 is about 738.4996481824.

The spelling of 402764216 in words is "four hundred two million, seven hundred sixty-four thousand, two hundred sixteen".