304545040 has 40 divisors (see below), whose sum is σ = 708793920. Its totient is φ = 121693056.

The previous prime is 304544993. The next prime is 304545067. The reversal of 304545040 is 40545403.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 304544996 and 304545014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148341 + ... + 150379.

It is an arithmetic number, because the mean of its divisors is an integer number (17719848).

Almost surely, 2^304545040 is an apocalyptic number.

It is an amenable number.

304545040 is an abundant number, since it is smaller than the sum of its proper divisors (404248880).

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

304545040 is a wasteful number, since it uses less digits than its factorization.

304545040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919 (or 3913 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 304545040 is about 17451.2188686063. The cubic root of 304545040 is about 672.7966859779.

The spelling of 304545040 in words is "three hundred four million, five hundred forty-five thousand, forty".