388894444 has 6 divisors (see below), whose sum is σ = 680565284. Its totient is φ = 194447220.

The previous prime is 388894439. The next prime is 388894469. The reversal of 388894444 is 444498883.

It is a junction number, because it is equal to n+sod(n) for n = 388894391 and 388894400.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48611802 + ... + 48611809.

Almost surely, 2^388894444 is an apocalyptic number.

It is an amenable number.

388894444 is a deficient number, since it is larger than the sum of its proper divisors (291670840).

388894444 is a wasteful number, since it uses less digits than its factorization.

388894444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97223615 (or 97223613 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 52.

The square root of 388894444 is about 19720.4067909361. The cubic root of 388894444 is about 729.9233321622.

The spelling of 388894444 in words is "three hundred eighty-eight million, eight hundred ninety-four thousand, four hundred forty-four".