32400091332 has 72 divisors (see below), whose sum is σ = 93619745856. Its totient is φ = 9255242304.

The previous prime is 32400091331. The next prime is 32400091357. The reversal of 32400091332 is 23319000423.

It is a happy number.

32400091332 is a `hidden beast` number, since 3 + 240 + 0 + 0 + 91 + 332 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 32400091296 and 32400091305.

It is not an unprimeable number, because it can be changed into a prime (32400091331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1571563 + ... + 1592045.

It is an arithmetic number, because the mean of its divisors is an integer number (1300274248).

Almost surely, 2^32400091332 is an apocalyptic number.

It is an amenable number.

32400091332 is an abundant number, since it is smaller than the sum of its proper divisors (61219654524).

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

32400091332 is a wasteful number, since it uses less digits than its factorization.

32400091332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26777 (or 26772 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 32400091332 its reverse (23319000423), we get a palindrome (55719091755).

It can be divided in two parts, 32400091 and 332, that added together give a palindrome (32400423).

The spelling of 32400091332 in words is "thirty-two billion, four hundred million, ninety-one thousand, three hundred thirty-two".