38016091 has 4 divisors (see below), whose sum is σ = 38824992. Its totient is φ = 37207192.

The previous prime is 38016073. The next prime is 38016107. The reversal of 38016091 is 19061083.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19061083 = 43 ⋅443281.

It is a cyclic number.

It is not a de Polignac number, because 38016091 - 2⁷ = 38015963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38016191) 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, 404380 + ... + 404473.

It is an arithmetic number, because the mean of its divisors is an integer number (9706248).

Almost surely, 2^38016091 is an apocalyptic number.

38016091 is a deficient number, since it is larger than the sum of its proper divisors (808901).

38016091 is an equidigital number, since it uses as much as digits as its factorization.

38016091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808900.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 38016091 is about 6165.7190172761. The cubic root of 38016091 is about 336.2449879713.

It can be divided in two parts, 380 and 16091, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 38016091 in words is "thirty-eight million, sixteen thousand, ninety-one".