307081272 has 16 divisors (see below), whose sum is σ = 767703240. Its totient is φ = 102360416.

The previous prime is 307081237. The next prime is 307081273. The reversal of 307081272 is 272180703.

It is a super-2 number, since 2×307081272² = 188597815226275968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307081273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6397503 + ... + 6397550.

Almost surely, 2^307081272 is an apocalyptic number.

It is an amenable number.

307081272 is an abundant number, since it is smaller than the sum of its proper divisors (460621968).

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

307081272 is a wasteful number, since it uses less digits than its factorization.

307081272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12795062 (or 12795058 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 307081272 is about 17523.7345334834. The cubic root of 307081272 is about 674.6591947614.

The spelling of 307081272 in words is "three hundred seven million, eighty-one thousand, two hundred seventy-two".