8381416 has 16 divisors (see below), whose sum is σ = 16050240. Its totient is φ = 4101360.

The previous prime is 8381393. The next prime is 8381437. The reversal of 8381416 is 6141838.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10770 + ... + 11521.

It is an arithmetic number, because the mean of its divisors is an integer number (1003140).

Almost surely, 2^8381416 is an apocalyptic number.

It is an amenable number.

8381416 is a deficient number, since it is larger than the sum of its proper divisors (7668824).

8381416 is a wasteful number, since it uses less digits than its factorization.

8381416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22344 (or 22340 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 8381416 is about 2895.0675294369. The cubic root of 8381416 is about 203.1292502779.

The spelling of 8381416 in words is "eight million, three hundred eighty-one thousand, four hundred sixteen".