38891416 has 8 divisors (see below), whose sum is σ = 72921420. Its totient is φ = 19445704.

The previous prime is 38891399. The next prime is 38891431. The reversal of 38891416 is 61419883.

38891416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2430706 + ... + 2430721.

Almost surely, 2^38891416 is an apocalyptic number.

It is an amenable number.

38891416 is a deficient number, since it is larger than the sum of its proper divisors (34030004).

38891416 is a wasteful number, since it uses less digits than its factorization.

38891416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4861433 (or 4861429 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 38891416 is about 6236.2982609878. The cubic root of 38891416 is about 338.8061241504.

The spelling of 38891416 in words is "thirty-eight million, eight hundred ninety-one thousand, four hundred sixteen".