720157464 has 192 divisors, whose sum is σ = 2227024800. Its totient is φ = 208631808.

The previous prime is 720157387. The next prime is 720157489. The reversal of 720157464 is 464751027.

720157464 is a `hidden beast` number, since 7 + 20 + 1 + 574 + 64 = 666.

It is a super-2 number, since 2×720157464² = 1037253545909822592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1166884 + ... + 1167500.

Almost surely, 2^720157464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 720157464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1113512400).

720157464 is an abundant number, since it is smaller than the sum of its proper divisors (1506867336).

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

720157464 is a wasteful number, since it uses less digits than its factorization.

720157464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 720157464 is about 26835.7497379894. The cubic root of 720157464 is about 896.3462834300.

The spelling of 720157464 in words is "seven hundred twenty million, one hundred fifty-seven thousand, four hundred sixty-four".