38815413 has 24 divisors (see below), whose sum is σ = 64052928. Its totient is φ = 20472192.

The previous prime is 38815409. The next prime is 38815433. The reversal of 38815413 is 31451883.

It is not a de Polignac number, because 38815413 - 2² = 38815409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38815433) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1920 + ... + 9017.

It is an arithmetic number, because the mean of its divisors is an integer number (2668872).

Almost surely, 2^38815413 is an apocalyptic number.

It is an amenable number.

38815413 is a deficient number, since it is larger than the sum of its proper divisors (25237515).

38815413 is a wasteful number, since it uses less digits than its factorization.

38815413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10973 (or 10960 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 38815413 is about 6230.2016821288. The cubic root of 38815413 is about 338.5852778662.

The spelling of 38815413 in words is "thirty-eight million, eight hundred fifteen thousand, four hundred thirteen".