307663680 has 56 divisors (see below), whose sum is σ = 976835232. Its totient is φ = 82043392.

The previous prime is 307663679. The next prime is 307663703. The reversal of 307663680 is 86366703.

It is a happy number.

It is a super-2 number, since 2×307663680² = 189313879982284800, which contains 22 as substring.

It is a congruent number.

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, 159282 + ... + 161201.

Almost surely, 2^307663680 is an apocalyptic number.

307663680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

307663680 is an abundant number, since it is smaller than the sum of its proper divisors (669171552).

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

307663680 is a wasteful number, since it uses less digits than its factorization.

307663680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320503 (or 320493 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 307663680 is about 17540.3443523780. The cubic root of 307663680 is about 675.0854432306.

The spelling of 307663680 in words is "three hundred seven million, six hundred sixty-three thousand, six hundred eighty".