38043091 has 4 divisors (see below), whose sum is σ = 38295184. Its totient is φ = 37791000.

The previous prime is 38043079. The next prime is 38043113. The reversal of 38043091 is 19034083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19034083 = 251 ⋅75833.

It is a cyclic number.

It is not a de Polignac number, because 38043091 - 2¹¹ = 38041043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38043011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125820 + ... + 126121.

It is an arithmetic number, because the mean of its divisors is an integer number (9573796).

Almost surely, 2^38043091 is an apocalyptic number.

38043091 is a deficient number, since it is larger than the sum of its proper divisors (252093).

38043091 is a wasteful number, since it uses less digits than its factorization.

38043091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252092.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 38043091 is about 6167.9081543097. The cubic root of 38043091 is about 336.3245723964.

The spelling of 38043091 in words is "thirty-eight million, forty-three thousand, ninety-one".