309048704 has 16 divisors (see below), whose sum is σ = 615683220. Its totient is φ = 154524288.

The previous prime is 309048653. The next prime is 309048721. The reversal of 309048704 is 407840903.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×309048704² = 191022202888159232, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1207094 + ... + 1207349.

Almost surely, 2^309048704 is an apocalyptic number.

It is an amenable number.

309048704 is a deficient number, since it is larger than the sum of its proper divisors (306634516).

309048704 is an equidigital number, since it uses as much as digits as its factorization.

309048704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414457 (or 2414445 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 309048704 is about 17579.7811135406. The cubic root of 309048704 is about 676.0969481534.

The spelling of 309048704 in words is "three hundred nine million, forty-eight thousand, seven hundred four".