38126881 has 4 divisors (see below), whose sum is σ = 41059732. Its totient is φ = 35194032.

The previous prime is 38126873. The next prime is 38126887. The reversal of 38126881 is 18862183.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7700625 + 30426256 = 2775^2 + 5516^2 .

It is a cyclic number.

It is not a de Polignac number, because 38126881 - 2³ = 38126873 is a prime.

It is a super-2 number, since 2×38126881² = 2907318109576322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38126881.

It is not an unprimeable number, because it can be changed into a prime (38126887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466406 + ... + 1466431.

It is an arithmetic number, because the mean of its divisors is an integer number (10264933).

Almost surely, 2^38126881 is an apocalyptic number.

It is an amenable number.

38126881 is a deficient number, since it is larger than the sum of its proper divisors (2932851).

38126881 is a wasteful number, since it uses less digits than its factorization.

38126881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932850.

The product of its digits is 18432, while the sum is 37.

The square root of 38126881 is about 6174.6968346632. The cubic root of 38126881 is about 336.5713098999.

The spelling of 38126881 in words is "thirty-eight million, one hundred twenty-six thousand, eight hundred eighty-one".