72490030232 has 32 divisors (see below), whose sum is σ = 140323814400. Its totient is φ = 35070688800.

The previous prime is 72490030213. The next prime is 72490030271. The reversal of 72490030232 is 23203009427.

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 7 ways as a sum of consecutive naturals, for example, 2100557 + ... + 2134787.

It is an arithmetic number, because the mean of its divisors is an integer number (4385119200).

Almost surely, 2^72490030232 is an apocalyptic number.

It is an amenable number.

72490030232 is a deficient number, since it is larger than the sum of its proper divisors (67833784168).

72490030232 is a wasteful number, since it uses less digits than its factorization.

72490030232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42807 (or 42803 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

Adding to 72490030232 its reverse (23203009427), we get a palindrome (95693039659).

The spelling of 72490030232 in words is "seventy-two billion, four hundred ninety million, thirty thousand, two hundred thirty-two".