383911428 has 24 divisors (see below), whose sum is σ = 896192640. Its totient is φ = 127913440.

The previous prime is 383911417. The next prime is 383911441. The reversal of 383911428 is 824119383.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27733 + ... + 39203.

It is an arithmetic number, because the mean of its divisors is an integer number (37341360).

Almost surely, 2^383911428 is an apocalyptic number.

It is an amenable number.

383911428 is an abundant number, since it is smaller than the sum of its proper divisors (512281212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

383911428 is a wasteful number, since it uses less digits than its factorization.

383911428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14267 (or 14265 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 383911428 is about 19593.6578514580. The cubic root of 383911428 is about 726.7923488061.

The spelling of 383911428 in words is "three hundred eighty-three million, nine hundred eleven thousand, four hundred twenty-eight".