306405052 has 6 divisors (see below), whose sum is σ = 536208848. Its totient is φ = 153202524.

The previous prime is 306405007. The next prime is 306405091. The reversal of 306405052 is 250504603.

It is a super-2 number, since 2×306405052² = 187768111782245408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38300628 + ... + 38300635.

Almost surely, 2^306405052 is an apocalyptic number.

It is an amenable number.

306405052 is a deficient number, since it is larger than the sum of its proper divisors (229803796).

306405052 is a wasteful number, since it uses less digits than its factorization.

306405052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76601267 (or 76601265 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 306405052 is about 17504.4294965589. The cubic root of 306405052 is about 674.1636111597.

Adding to 306405052 its reverse (250504603), we get a palindrome (556909655).

The spelling of 306405052 in words is "three hundred six million, four hundred five thousand, fifty-two".