38164091 has 24 divisors (see below), whose sum is σ = 46347840. Its totient is φ = 31307472.

The previous prime is 38164043. The next prime is 38164097. The reversal of 38164091 is 19046183.

It is a happy number.

It is not a de Polignac number, because 38164091 - 2¹⁸ = 37901947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38164097) 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, 124160 + ... + 124466.

It is an arithmetic number, because the mean of its divisors is an integer number (1931160).

Almost surely, 2^38164091 is an apocalyptic number.

38164091 is a deficient number, since it is larger than the sum of its proper divisors (8183749).

38164091 is a wasteful number, since it uses less digits than its factorization.

38164091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 38164091 is about 6177.7092032565. The cubic root of 38164091 is about 336.6807667634.

The spelling of 38164091 in words is "thirty-eight million, one hundred sixty-four thousand, ninety-one".