38424881 has 12 divisors (see below), whose sum is σ = 44075136. Its totient is φ = 33410520.

The previous prime is 38424851. The next prime is 38424887. The reversal of 38424881 is 18842483.

38424881 = 1864² + 1865² + ... + 1874².

It is not a de Polignac number, because 38424881 - 2⁶ = 38424817 is a prime.

It is a super-2 number, since 2×38424881² = 2952942959728322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38424887) 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, 4121 + ... + 9686.

It is an arithmetic number, because the mean of its divisors is an integer number (3672928).

Almost surely, 2^38424881 is an apocalyptic number.

It is an amenable number.

38424881 is a deficient number, since it is larger than the sum of its proper divisors (5650255).

38424881 is a wasteful number, since it uses less digits than its factorization.

38424881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13852 (or 13841 counting only the distinct ones).

The product of its digits is 49152, while the sum is 38.

The square root of 38424881 is about 6198.7806058934. The cubic root of 38424881 is about 337.4459165281.

The spelling of 38424881 in words is "thirty-eight million, four hundred twenty-four thousand, eight hundred eighty-one".