384428892 has 48 divisors (see below), whose sum is σ = 929359872. Its totient is φ = 123551040.

The previous prime is 384428879. The next prime is 384428903. The reversal of 384428892 is 298824483.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107233 + ... + 110759.

It is an arithmetic number, because the mean of its divisors is an integer number (19361664).

Almost surely, 2^384428892 is an apocalyptic number.

It is an amenable number.

384428892 is an abundant number, since it is smaller than the sum of its proper divisors (544930980).

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

384428892 is a wasteful number, since it uses less digits than its factorization.

384428892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858 (or 3856 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The square root of 384428892 is about 19606.8582898944. The cubic root of 384428892 is about 727.1187435607.

The spelling of 384428892 in words is "three hundred eighty-four million, four hundred twenty-eight thousand, eight hundred ninety-two".