383973728 has 12 divisors (see below), whose sum is σ = 755948340. Its totient is φ = 191986848.

The previous prime is 383973697. The next prime is 383973767. The reversal of 383973728 is 827379383.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5999558 + ... + 5999621.

It is an arithmetic number, because the mean of its divisors is an integer number (62995695).

Almost surely, 2^383973728 is an apocalyptic number.

It is an amenable number.

383973728 is a deficient number, since it is larger than the sum of its proper divisors (371974612).

383973728 is a wasteful number, since it uses less digits than its factorization.

383973728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11999189 (or 11999181 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 50.

The square root of 383973728 is about 19595.2475871064. The cubic root of 383973728 is about 726.8316605770.

The spelling of 383973728 in words is "three hundred eighty-three million, nine hundred seventy-three thousand, seven hundred twenty-eight".