38380791 has 4 divisors (see below), whose sum is σ = 51174392. Its totient is φ = 25587192.

The previous prime is 38380763. The next prime is 38380799. The reversal of 38380791 is 19708383.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 38380791 - 2⁷ = 38380663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38380799) 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, 6396796 + ... + 6396801.

It is an arithmetic number, because the mean of its divisors is an integer number (12793598).

Almost surely, 2^38380791 is an apocalyptic number.

38380791 is a deficient number, since it is larger than the sum of its proper divisors (12793601).

38380791 is a wasteful number, since it uses less digits than its factorization.

38380791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12793600.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 38380791 is about 6195.2232405298. The cubic root of 38380791 is about 337.3168015362.

The spelling of 38380791 in words is "thirty-eight million, three hundred eighty thousand, seven hundred ninety-one".