32403138320 has 160 divisors (see below), whose sum is σ = 91772269056. Its totient is φ = 10386432000.

The previous prime is 32403138281. The next prime is 32403138347. The reversal of 32403138320 is 2383130423.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1426250 + ... + 1448790.

Almost surely, 2^32403138320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32403138320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45886134528).

32403138320 is an abundant number, since it is smaller than the sum of its proper divisors (59369130736).

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

32403138320 is a wasteful number, since it uses less digits than its factorization.

32403138320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22729 (or 22723 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 32403138320 its reverse (2383130423), we get a palindrome (34786268743).

The spelling of 32403138320 in words is "thirty-two billion, four hundred three million, one hundred thirty-eight thousand, three hundred twenty".