307408436 has 12 divisors (see below), whose sum is σ = 538464612. Its totient is φ = 153561408.

The previous prime is 307408411. The next prime is 307408441. The reversal of 307408436 is 634804703.

It can be written as a sum of positive squares in 2 ways, for example, as 135955600 + 171452836 = 11660^2 + 13094^2 .

It is a junction number, because it is equal to n+sod(n) for n = 307408396 and 307408405.

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 in 3 ways as a sum of consecutive naturals, for example, 30785 + ... + 39528.

It is an arithmetic number, because the mean of its divisors is an integer number (44872051).

Almost surely, 2^307408436 is an apocalyptic number.

It is an amenable number.

307408436 is a deficient number, since it is larger than the sum of its proper divisors (231056176).

307408436 is a wasteful number, since it uses less digits than its factorization.

307408436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71410 (or 71408 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 307408436 is about 17533.0669308025. The cubic root of 307408436 is about 674.8987034092.

The spelling of 307408436 in words is "three hundred seven million, four hundred eight thousand, four hundred thirty-six".