720464380 has 24 divisors (see below), whose sum is σ = 1514257920. Its totient is φ = 287941440.

The previous prime is 720464359. The next prime is 720464449. The reversal of 720464380 is 83464027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9925 + ... + 39235.

It is an arithmetic number, because the mean of its divisors is an integer number (63094080).

Almost surely, 2^720464380 is an apocalyptic number.

It is an amenable number.

720464380 is an abundant number, since it is smaller than the sum of its proper divisors (793793540).

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

720464380 is a wasteful number, since it uses less digits than its factorization.

720464380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30549 (or 30547 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 720464380 is about 26841.4675455721. The cubic root of 720464380 is about 896.4736000045.

The spelling of 720464380 in words is "seven hundred twenty million, four hundred sixty-four thousand, three hundred eighty".