307645460 has 12 divisors (see below), whose sum is σ = 646055508. Its totient is φ = 123058176.

The previous prime is 307645399. The next prime is 307645469. The reversal of 307645460 is 64546703.

It can be written as a sum of positive squares in 2 ways, for example, as 118417924 + 189227536 = 10882^2 + 13756^2 .

It is a super-2 number, since 2×307645460² = 189291458117223200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 307645460.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307645469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7691117 + ... + 7691156.

It is an arithmetic number, because the mean of its divisors is an integer number (53837959).

Almost surely, 2^307645460 is an apocalyptic number.

It is an amenable number.

307645460 is an abundant number, since it is smaller than the sum of its proper divisors (338410048).

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

307645460 is a wasteful number, since it uses less digits than its factorization.

307645460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15382282 (or 15382280 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 307645460 is about 17539.8249706204. The cubic root of 307645460 is about 675.0721166661.

The spelling of 307645460 in words is "three hundred seven million, six hundred forty-five thousand, four hundred sixty".