720130032 has 30 divisors (see below), whose sum is σ = 2015364312. Its totient is φ = 240043296.

The previous prime is 720129989. The next prime is 720130049. The reversal of 720130032 is 230031027.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 720129987 and 720130014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2500308 + ... + 2500595.

Almost surely, 2^720130032 is an apocalyptic number.

720130032 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

720130032 is an abundant number, since it is smaller than the sum of its proper divisors (1295234280).

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

720130032 is a wasteful number, since it uses less digits than its factorization.

720130032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000917 (or 5000908 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 720130032 is about 26835.2386238692. The cubic root of 720130032 is about 896.3349021767.

Adding to 720130032 its reverse (230031027), we get a palindrome (950161059).

The spelling of 720130032 in words is "seven hundred twenty million, one hundred thirty thousand, thirty-two".