667354402 has 16 divisors (see below), whose sum is σ = 1176037632. Its totient is φ = 280008720.

The previous prime is 667354381. The next prime is 667354433. The reversal of 667354402 is 204453766.

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, 1166418 + ... + 1166989.

It is an arithmetic number, because the mean of its divisors is an integer number (73502352).

Almost surely, 2^667354402 is an apocalyptic number.

667354402 is a deficient number, since it is larger than the sum of its proper divisors (508683230).

667354402 is a wasteful number, since it uses less digits than its factorization.

667354402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333433.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 667354402 is about 25833.2034792435. The cubic root of 667354402 is about 873.8807575750.

It can be divided in two parts, 6673 and 54402, that added together give a triangular number (61075 = T₃₄₉).

The spelling of 667354402 in words is "six hundred sixty-seven million, three hundred fifty-four thousand, four hundred two".