407332161 has 6 divisors (see below), whose sum is σ = 588368690. Its totient is φ = 271554768.

The previous prime is 407332153. The next prime is 407332169. The reversal of 407332161 is 161233704.

It is an interprime number because it is at equal distance from previous prime (407332153) and next prime (407332169).

It can be written as a sum of positive squares in only one way, i.e., 398241936 + 9090225 = 19956^2 + 3015^2 .

It is not a de Polignac number, because 407332161 - 2³ = 407332153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (407332169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22629556 + ... + 22629573.

Almost surely, 2^407332161 is an apocalyptic number.

It is an amenable number.

407332161 is a deficient number, since it is larger than the sum of its proper divisors (181036529).

407332161 is a wasteful number, since it uses less digits than its factorization.

407332161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45259135 (or 45259132 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 407332161 is about 20182.4716276278. The cubic root of 407332161 is about 741.2810540885.

Adding to 407332161 its reverse (161233704), we get a palindrome (568565865).

The spelling of 407332161 in words is "four hundred seven million, three hundred thirty-two thousand, one hundred sixty-one".