402164266 has 24 divisors (see below), whose sum is σ = 703031616. Its totient is φ = 172037880.

The previous prime is 402164263. The next prime is 402164281. The reversal of 402164266 is 662461204.

It is not an unprimeable number, because it can be changed into a prime (402164263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54031 + ... + 61021.

It is an arithmetic number, because the mean of its divisors is an integer number (29292984).

Almost surely, 2^402164266 is an apocalyptic number.

402164266 is a deficient number, since it is larger than the sum of its proper divisors (300867350).

402164266 is a wasteful number, since it uses less digits than its factorization.

402164266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7594 (or 7587 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 402164266 is about 20054.0336590921. The cubic root of 402164266 is about 738.1327809010.

The spelling of 402164266 in words is "four hundred two million, one hundred sixty-four thousand, two hundred sixty-six".