402332161 has 16 divisors (see below), whose sum is σ = 503821440. Its totient is φ = 312122880.

The previous prime is 402332153. The next prime is 402332213. The reversal of 402332161 is 161233204.

It is a cyclic number.

It is not a de Polignac number, because 402332161 - 2³ = 402332153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402332131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6225 + ... + 29041.

It is an arithmetic number, because the mean of its divisors is an integer number (31488840).

Almost surely, 2^402332161 is an apocalyptic number.

It is an amenable number.

402332161 is a deficient number, since it is larger than the sum of its proper divisors (101489279).

402332161 is a wasteful number, since it uses less digits than its factorization.

402332161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23064.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 402332161 is about 20058.2192878630. The cubic root of 402332161 is about 738.2354848389.

Adding to 402332161 its reverse (161233204), we get a palindrome (563565365).

The spelling of 402332161 in words is "four hundred two million, three hundred thirty-two thousand, one hundred sixty-one".