72840232444 has 36 divisors (see below), whose sum is σ = 154728950544. Its totient is φ = 29859969216.

The previous prime is 72840232403. The next prime is 72840232459. The reversal of 72840232444 is 44423204827.

It is a junction number, because it is equal to n+sod(n) for n = 72840232397 and 72840232406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8074489 + ... + 8083504.

It is an arithmetic number, because the mean of its divisors is an integer number (4298026404).

Almost surely, 2^72840232444 is an apocalyptic number.

It is an amenable number.

72840232444 is an abundant number, since it is smaller than the sum of its proper divisors (81888718100).

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

72840232444 is a wasteful number, since it uses less digits than its factorization.

72840232444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16158034 (or 16158025 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 40.

The spelling of 72840232444 in words is "seventy-two billion, eight hundred forty million, two hundred thirty-two thousand, four hundred forty-four".