402332166 has 48 divisors (see below), whose sum is σ = 944493264. Its totient is φ = 123282432.

The previous prime is 402332153. The next prime is 402332213. The reversal of 402332166 is 661233204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2131 + ... + 28446.

It is an arithmetic number, because the mean of its divisors is an integer number (19676943).

Almost surely, 2^402332166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402332166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472246632).

402332166 is an abundant number, since it is smaller than the sum of its proper divisors (542161098).

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

402332166 is a wasteful number, since it uses less digits than its factorization.

402332166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30645 (or 30642 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 402332166 is about 20058.2194125002. The cubic root of 402332166 is about 738.2354878970.

The spelling of 402332166 in words is "four hundred two million, three hundred thirty-two thousand, one hundred sixty-six".