38911113 has 24 divisors (see below), whose sum is σ = 59799168. Its totient is φ = 24296832.

The previous prime is 38911109. The next prime is 38911133. The reversal of 38911113 is 31111983.

It is a happy number.

It is not a de Polignac number, because 38911113 - 2² = 38911109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38911133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39756 + ... + 40722.

It is an arithmetic number, because the mean of its divisors is an integer number (2491632).

Almost surely, 2^38911113 is an apocalyptic number.

It is an amenable number.

38911113 is a deficient number, since it is larger than the sum of its proper divisors (20888055).

38911113 is a wasteful number, since it uses less digits than its factorization.

38911113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253 (or 1250 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 38911113 is about 6237.8772831790. The cubic root of 38911113 is about 338.8633119021.

The spelling of 38911113 in words is "thirty-eight million, nine hundred eleven thousand, one hundred thirteen".