406462665 has 16 divisors (see below), whose sum is σ = 743246208. Its totient is φ = 185811456.

The previous prime is 406462621. The next prime is 406462681. The reversal of 406462665 is 566264604.

It is not a de Polignac number, because 406462665 - 2⁹ = 406462153 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1935432 + ... + 1935641.

It is an arithmetic number, because the mean of its divisors is an integer number (46452888).

Almost surely, 2^406462665 is an apocalyptic number.

It is an amenable number.

406462665 is a deficient number, since it is larger than the sum of its proper divisors (336783543).

406462665 is a wasteful number, since it uses less digits than its factorization.

406462665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871088.

The product of its (nonzero) digits is 207360, while the sum is 39.

The square root of 406462665 is about 20160.9192498755. The cubic root of 406462665 is about 740.7532292708.

The spelling of 406462665 in words is "four hundred six million, four hundred sixty-two thousand, six hundred sixty-five".