72430130220 has 48 divisors (see below), whose sum is σ = 231776418048. Its totient is φ = 16555458240.

The previous prime is 72430130191. The next prime is 72430130233. The reversal of 72430130220 is 2203103427.

It is a super-2 number, since 2×72430130220² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86225926 + ... + 86226765.

It is an arithmetic number, because the mean of its divisors is an integer number (4828675376).

Almost surely, 2^72430130220 is an apocalyptic number.

72430130220 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72430130220 is an abundant number, since it is smaller than the sum of its proper divisors (159346287828).

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

72430130220 is a wasteful number, since it uses less digits than its factorization.

72430130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172452710 (or 172452708 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

Adding to 72430130220 its reverse (2203103427), we get a palindrome (74633233647).

The spelling of 72430130220 in words is "seventy-two billion, four hundred thirty million, one hundred thirty thousand, two hundred twenty".