406332513 has 12 divisors (see below), whose sum is σ = 612443520. Its totient is φ = 259110456.

The previous prime is 406332481. The next prime is 406332533. The reversal of 406332513 is 315233604.

It is a happy number.

406332513 is a `hidden beast` number, since 4 + 0 + 633 + 25 + 1 + 3 = 666.

It is not a de Polignac number, because 406332513 - 2⁵ = 406332481 is a prime.

It is a super-2 number, since 2×406332513² = 330212222241790338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (406332533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 981273 + ... + 981686.

It is an arithmetic number, because the mean of its divisors is an integer number (51036960).

Almost surely, 2^406332513 is an apocalyptic number.

It is an amenable number.

406332513 is a deficient number, since it is larger than the sum of its proper divisors (206111007).

406332513 is a wasteful number, since it uses less digits than its factorization.

406332513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962988 (or 1962985 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 406332513 is about 20157.6911624323. The cubic root of 406332513 is about 740.6741561563.

The spelling of 406332513 in words is "four hundred six million, three hundred thirty-two thousand, five hundred thirteen".