305712404 has 12 divisors (see below), whose sum is σ = 535281684. Its totient is φ = 152774784.

The previous prime is 305712397. The next prime is 305712431. The reversal of 305712404 is 404217503.

It can be written as a sum of positive squares in 2 ways, for example, as 45535504 + 260176900 = 6748^2 + 16130^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11477 + ... + 27260.

It is an arithmetic number, because the mean of its divisors is an integer number (44606807).

Almost surely, 2^305712404 is an apocalyptic number.

It is an amenable number.

305712404 is a deficient number, since it is larger than the sum of its proper divisors (229569280).

305712404 is a wasteful number, since it uses less digits than its factorization.

305712404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40714 (or 40712 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 305712404 is about 17484.6333676174. The cubic root of 305712404 is about 673.6552313976.

Adding to 305712404 its reverse (404217503), we get a palindrome (709929907).

The spelling of 305712404 in words is "three hundred five million, seven hundred twelve thousand, four hundred four".