402446166 has 16 divisors (see below), whose sum is σ = 832647600. Its totient is φ = 129522848.

The previous prime is 402446071. The next prime is 402446171. The reversal of 402446166 is 661644204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1156281 + ... + 1156628.

It is an arithmetic number, because the mean of its divisors is an integer number (52040475).

Almost surely, 2^402446166 is an apocalyptic number.

402446166 is an abundant number, since it is smaller than the sum of its proper divisors (430201434).

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

402446166 is a wasteful number, since it uses less digits than its factorization.

402446166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312943.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 402446166 is about 20061.0609390431. The cubic root of 402446166 is about 738.3052071533.

The spelling of 402446166 in words is "four hundred two million, four hundred forty-six thousand, one hundred sixty-six".