306473904 has 120 divisors (see below), whose sum is σ = 942207552. Its totient is φ = 92223360.

The previous prime is 306473851. The next prime is 306473927. The reversal of 306473904 is 409374603.

306473904 is a `hidden beast` number, since 3 + 0 + 647 + 3 + 9 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 257599 + ... + 258785.

Almost surely, 2^306473904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 306473904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471103776).

306473904 is an abundant number, since it is smaller than the sum of its proper divisors (635733648).

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

306473904 is a wasteful number, since it uses less digits than its factorization.

306473904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375 (or 1366 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 306473904 is about 17506.3960882873. The cubic root of 306473904 is about 674.2141042746.

The spelling of 306473904 in words is "three hundred six million, four hundred seventy-three thousand, nine hundred four".