38891404 has 24 divisors (see below), whose sum is σ = 72825200. Its totient is φ = 18118080.

The previous prime is 38891399. The next prime is 38891431. The reversal of 38891404 is 40419883.

38891404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442 + ... + 8830.

Almost surely, 2^38891404 is an apocalyptic number.

It is an amenable number.

38891404 is a deficient number, since it is larger than the sum of its proper divisors (33933796).

38891404 is a wasteful number, since it uses less digits than its factorization.

38891404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8473 (or 8471 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 38891404 is about 6236.2972988786. The cubic root of 38891404 is about 338.8060893040.

The spelling of 38891404 in words is "thirty-eight million, eight hundred ninety-one thousand, four hundred four".