307863940 has 24 divisors (see below), whose sum is σ = 647035200. Its totient is φ = 123046368.

The previous prime is 307863937. The next prime is 307863953. The reversal of 307863940 is 49368703.

307863940 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 307863893 and 307863902.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22479 + ... + 33481.

It is an arithmetic number, because the mean of its divisors is an integer number (26959800).

Almost surely, 2^307863940 is an apocalyptic number.

It is an amenable number.

307863940 is an abundant number, since it is smaller than the sum of its proper divisors (339171260).

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

307863940 is a wasteful number, since it uses less digits than its factorization.

307863940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12411 (or 12409 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 307863940 is about 17546.0519775817. The cubic root of 307863940 is about 675.2318837517.

It can be divided in two parts, 307863 and 940, that added together give a palindrome (308803).

The spelling of 307863940 in words is "three hundred seven million, eight hundred sixty-three thousand, nine hundred forty".