304475730 has 32 divisors (see below), whose sum is σ = 786953664. Its totient is φ = 74947776.

The previous prime is 304475693. The next prime is 304475737. The reversal of 304475730 is 37574403.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 304475691 and 304475700.

It is not an unprimeable number, because it can be changed into a prime (304475737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389964 + ... + 390743.

It is an arithmetic number, because the mean of its divisors is an integer number (24592302).

Almost surely, 2^304475730 is an apocalyptic number.

304475730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

304475730 is an abundant number, since it is smaller than the sum of its proper divisors (482477934).

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

304475730 is a wasteful number, since it uses less digits than its factorization.

304475730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780730.

The product of its (nonzero) digits is 35280, while the sum is 33.

The square root of 304475730 is about 17449.2329344301. The cubic root of 304475730 is about 672.7456425413.

The spelling of 304475730 in words is "three hundred four million, four hundred seventy-five thousand, seven hundred thirty".