38808621 has 24 divisors (see below), whose sum is σ = 60919040. Its totient is φ = 23716800.

The previous prime is 38808617. The next prime is 38808647. The reversal of 38808621 is 12680883.

It is not a de Polignac number, because 38808621 - 2² = 38808617 is a prime.

It is a super-2 number, since 2×38808621² = 3012218127843282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38808691) 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, 1641 + ... + 8961.

Almost surely, 2^38808621 is an apocalyptic number.

38808621 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

38808621 is a deficient number, since it is larger than the sum of its proper divisors (22110419).

38808621 is a wasteful number, since it uses less digits than its factorization.

38808621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7377 (or 7374 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 38808621 is about 6229.6565715937. The cubic root of 38808621 is about 338.5655279337.

The spelling of 38808621 in words is "thirty-eight million, eight hundred eight thousand, six hundred twenty-one".