32090992440 has 256 divisors, whose sum is σ = 106886545920. Its totient is φ = 7656560640.

The previous prime is 32090992421. The next prime is 32090992441. The reversal of 32090992440 is 4429909023.

It is a junction number, because it is equal to n+sod(n) for n = 32090992392 and 32090992401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32090992441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17719135 + ... + 17720945.

It is an arithmetic number, because the mean of its divisors is an integer number (417525570).

Almost surely, 2^32090992440 is an apocalyptic number.

32090992440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32090992440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53443272960).

32090992440 is an abundant number, since it is smaller than the sum of its proper divisors (74795553480).

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

32090992440 is a wasteful number, since it uses less digits than its factorization.

32090992440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182 (or 2178 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 32090992440 in words is "thirty-two billion, ninety million, nine hundred ninety-two thousand, four hundred forty".