405166332 has 12 divisors (see below), whose sum is σ = 945388136. Its totient is φ = 135055440.

The previous prime is 405166319. The next prime is 405166343. The reversal of 405166332 is 233661504.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 405166332.

It is a congruent number.

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, 16881919 + ... + 16881942.

Almost surely, 2^405166332 is an apocalyptic number.

It is an amenable number.

405166332 is an abundant number, since it is smaller than the sum of its proper divisors (540221804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405166332 is a wasteful number, since it uses less digits than its factorization.

405166332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33763868 (or 33763866 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 405166332 is about 20128.7439250441. The cubic root of 405166332 is about 739.9648948528.

The spelling of 405166332 in words is "four hundred five million, one hundred sixty-six thousand, three hundred thirty-two".