307412540 has 24 divisors (see below), whose sum is σ = 645896160. Its totient is φ = 122902208.

The previous prime is 307412537. The next prime is 307412543. The reversal of 307412540 is 45214703.

It is an interprime number because it is at equal distance from previous prime (307412537) and next prime (307412543).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307412543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72314 + ... + 76446.

It is an arithmetic number, because the mean of its divisors is an integer number (26912340).

Almost surely, 2^307412540 is an apocalyptic number.

It is an amenable number.

307412540 is an abundant number, since it is smaller than the sum of its proper divisors (338483620).

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

307412540 is a wasteful number, since it uses less digits than its factorization.

307412540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7861 (or 7859 counting only the distinct ones).

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

The square root of 307412540 is about 17533.1839664107. The cubic root of 307412540 is about 674.9017067664.

The spelling of 307412540 in words is "three hundred seven million, four hundred twelve thousand, five hundred forty".