994421904 has 40 divisors (see below), whose sum is σ = 2935913280. Its totient is φ = 284120448.

The previous prime is 994421899. The next prime is 994421957. The reversal of 994421904 is 409124499.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 1479459 + ... + 1480130.

It is an arithmetic number, because the mean of its divisors is an integer number (73397832).

Almost surely, 2^994421904 is an apocalyptic number.

It is an amenable number.

994421904 is an abundant number, since it is smaller than the sum of its proper divisors (1941491376).

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

994421904 is a wasteful number, since it uses less digits than its factorization.

994421904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2959607 (or 2959601 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 994421904 is about 31534.4558221638. The cubic root of 994421904 is about 998.1371666734.

The spelling of 994421904 in words is "nine hundred ninety-four million, four hundred twenty-one thousand, nine hundred four".