38365281 has 12 divisors (see below), whose sum is σ = 56356560. Its totient is φ = 25143000.

The previous prime is 38365273. The next prime is 38365333. The reversal of 38365281 is 18256383.

It is not a de Polignac number, because 38365281 - 2³ = 38365273 is a prime.

It is a super-2 number, since 2×38365281² = 2943789572417922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38365241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35595 + ... + 36656.

It is an arithmetic number, because the mean of its divisors is an integer number (4696380).

Almost surely, 2^38365281 is an apocalyptic number.

It is an amenable number.

38365281 is a deficient number, since it is larger than the sum of its proper divisors (17991279).

38365281 is a wasteful number, since it uses less digits than its factorization.

38365281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72316 (or 72313 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 38365281 is about 6193.9713431691. The cubic root of 38365281 is about 337.2713578967.

The spelling of 38365281 in words is "thirty-eight million, three hundred sixty-five thousand, two hundred eighty-one".