38630405 has 32 divisors (see below), whose sum is σ = 53319168. Its totient is φ = 26611200.

The previous prime is 38630399. The next prime is 38630413. The reversal of 38630405 is 50403683.

It is not a de Polignac number, because 38630405 - 2⁸ = 38630149 is a prime.

It is a Duffinian number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 83204 + ... + 83666.

It is an arithmetic number, because the mean of its divisors is an integer number (1666224).

Almost surely, 2^38630405 is an apocalyptic number.

It is an amenable number.

38630405 is a deficient number, since it is larger than the sum of its proper divisors (14688763).

38630405 is a wasteful number, since it uses less digits than its factorization.

38630405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 38630405 is about 6215.3362740885. The cubic root of 38630405 is about 338.0464818257.

The spelling of 38630405 in words is "thirty-eight million, six hundred thirty thousand, four hundred five".