38390481 has 24 divisors (see below), whose sum is σ = 57073536. Its totient is φ = 24857280.

The previous prime is 38390477. The next prime is 38390491. The reversal of 38390481 is 18409383.

It is not a de Polignac number, because 38390481 - 2² = 38390477 is a prime.

It is a super-2 number, since 2×38390481² = 2947658062822722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38390441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46236 + ... + 47058.

It is an arithmetic number, because the mean of its divisors is an integer number (2378064).

Almost surely, 2^38390481 is an apocalyptic number.

It is an amenable number.

38390481 is a deficient number, since it is larger than the sum of its proper divisors (18683055).

38390481 is a wasteful number, since it uses less digits than its factorization.

38390481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 38390481 is about 6196.0052453173. The cubic root of 38390481 is about 337.3451866101.

The spelling of 38390481 in words is "thirty-eight million, three hundred ninety thousand, four hundred eighty-one".