32320140432 has 20 divisors (see below), whose sum is σ = 83493696240. Its totient is φ = 10773380128.

The previous prime is 32320140421. The next prime is 32320140451. The reversal of 32320140432 is 23404102323.

It is a super-2 number, since 2×32320140432² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336668082 + ... + 336668177.

It is an arithmetic number, because the mean of its divisors is an integer number (4174684812).

Almost surely, 2^32320140432 is an apocalyptic number.

It is an amenable number.

32320140432 is an abundant number, since it is smaller than the sum of its proper divisors (51173555808).

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

32320140432 is a wasteful number, since it uses less digits than its factorization.

32320140432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673336270 (or 673336264 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 32320140432 its reverse (23404102323), we get a palindrome (55724242755).

The spelling of 32320140432 in words is "thirty-two billion, three hundred twenty million, one hundred forty thousand, four hundred thirty-two".