307540972 has 12 divisors (see below), whose sum is σ = 539484120. Its totient is φ = 153402656.

The previous prime is 307540963. The next prime is 307540991. The reversal of 307540972 is 279045703.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90073 + ... + 93424.

It is an arithmetic number, because the mean of its divisors is an integer number (44957010).

Almost surely, 2^307540972 is an apocalyptic number.

It is an amenable number.

307540972 is a deficient number, since it is larger than the sum of its proper divisors (231943148).

307540972 is a wasteful number, since it uses less digits than its factorization.

307540972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183920 (or 183918 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 307540972 is about 17536.8461246599. The cubic root of 307540972 is about 674.9956813624.

The spelling of 307540972 in words is "three hundred seven million, five hundred forty thousand, nine hundred seventy-two".