384921628 has 24 divisors (see below), whose sum is σ = 829062752. Its totient is φ = 152276544.

The previous prime is 384921617. The next prime is 384921671. The reversal of 384921628 is 826129483.

It is a congruent number.

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, 528375 + ... + 529102.

Almost surely, 2^384921628 is an apocalyptic number.

It is an amenable number.

384921628 is an abundant number, since it is smaller than the sum of its proper divisors (444141124).

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

384921628 is a wasteful number, since it uses less digits than its factorization.

384921628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057501 (or 1057499 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 384921628 is about 19619.4196652195. The cubic root of 384921628 is about 727.4292687972.

The spelling of 384921628 in words is "three hundred eighty-four million, nine hundred twenty-one thousand, six hundred twenty-eight".