38266881 has 16 divisors (see below), whose sum is σ = 54359424. Its totient is φ = 23861504.

The previous prime is 38266853. The next prime is 38266897. The reversal of 38266881 is 18866283.

It is a cyclic number.

It is not a de Polignac number, because 38266881 - 2¹⁵ = 38234113 is a prime.

It is a super-2 number, since 2×38266881² = 2928708362936322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38266801) 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, 6271 + ... + 10763.

It is an arithmetic number, because the mean of its divisors is an integer number (3397464).

Almost surely, 2^38266881 is an apocalyptic number.

It is an amenable number.

38266881 is a deficient number, since it is larger than the sum of its proper divisors (16092543).

38266881 is a wasteful number, since it uses less digits than its factorization.

38266881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4680.

The product of its digits is 110592, while the sum is 42.

The square root of 38266881 is about 6186.0230358446. The cubic root of 38266881 is about 336.9827643684.

The spelling of 38266881 in words is "thirty-eight million, two hundred sixty-six thousand, eight hundred eighty-one".