307490736 has 160 divisors (see below), whose sum is σ = 956510208. Its totient is φ = 83266560.

The previous prime is 307490731. The next prime is 307490753. The reversal of 307490736 is 637094703.

It is a junction number, because it is equal to n+sod(n) for n = 307490694 and 307490703.

It is not an unprimeable number, because it can be changed into a prime (307490731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 551770 + ... + 552326.

Almost surely, 2^307490736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307490736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478255104).

307490736 is an abundant number, since it is smaller than the sum of its proper divisors (649019472).

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

307490736 is a wasteful number, since it uses less digits than its factorization.

307490736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 39.

The square root of 307490736 is about 17535.4137675733. The cubic root of 307490736 is about 674.9589264445.

The spelling of 307490736 in words is "three hundred seven million, four hundred ninety thousand, seven hundred thirty-six".