720405368 has 16 divisors (see below), whose sum is σ = 1421853000. Its totient is φ = 341244576.

The previous prime is 720405353. The next prime is 720405407. The reversal of 720405368 is 863504027.

It is a happy number.

It is a congruent number.

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, 2369603 + ... + 2369906.

Almost surely, 2^720405368 is an apocalyptic number.

It is an amenable number.

720405368 is a deficient number, since it is larger than the sum of its proper divisors (701447632).

720405368 is a wasteful number, since it uses less digits than its factorization.

720405368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4739534 (or 4739530 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 720405368 is about 26840.3682538075. The cubic root of 720405368 is about 896.4491231319.

The spelling of 720405368 in words is "seven hundred twenty million, four hundred five thousand, three hundred sixty-eight".