402764030 has 8 divisors (see below), whose sum is σ = 724975272. Its totient is φ = 161105608.

The previous prime is 402763993. The next prime is 402764039. The reversal of 402764030 is 30467204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402764039) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20138192 + ... + 20138211.

It is an arithmetic number, because the mean of its divisors is an integer number (90621909).

Almost surely, 2^402764030 is an apocalyptic number.

402764030 is a deficient number, since it is larger than the sum of its proper divisors (322211242).

402764030 is a wasteful number, since it uses less digits than its factorization.

402764030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40276410.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 402764030 is about 20068.9817878237. The cubic root of 402764030 is about 738.4995345005.

The spelling of 402764030 in words is "four hundred two million, seven hundred sixty-four thousand, thirty".