38290131 has 16 divisors (see below), whose sum is σ = 61883520. Its totient is φ = 23205960.

The previous prime is 38290117. The next prime is 38290139. The reversal of 38290131 is 13109283.

It is not a de Polignac number, because 38290131 - 2⁵ = 38290099 is a prime.

It is a super-2 number, since 2×38290131² = 2932268263994322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 38290095 and 38290104.

It is not an unprimeable number, because it can be changed into a prime (38290139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64165 + ... + 64758.

It is an arithmetic number, because the mean of its divisors is an integer number (3867720).

Almost surely, 2^38290131 is an apocalyptic number.

38290131 is a deficient number, since it is larger than the sum of its proper divisors (23593389).

38290131 is a wasteful number, since it uses less digits than its factorization.

38290131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128943 (or 128937 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 38290131 is about 6187.9019869419. The cubic root of 38290131 is about 337.0509979850.

The spelling of 38290131 in words is "thirty-eight million, two hundred ninety thousand, one hundred thirty-one".