307222472 has 12 divisors (see below), whose sum is σ = 576135105. Its totient is φ = 153586448.

The previous prime is 307222459. The next prime is 307222483. The reversal of 307222472 is 274222703.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 303665476 + 3556996 = 17426^2 + 1886^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=12394.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 46478 + ... + 52674.

Almost surely, 2^307222472 is an apocalyptic number.

It is an amenable number.

307222472 is a deficient number, since it is larger than the sum of its proper divisors (268912633).

307222472 is an frugal number, since it uses more digits than its factorization.

307222472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12400 (or 6199 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 307222472 is about 17527.7628920521. The cubic root of 307222472 is about 674.7625846344.

The spelling of 307222472 in words is "three hundred seven million, two hundred twenty-two thousand, four hundred seventy-two".