32040402140 has 48 divisors (see below), whose sum is σ = 67945651200. Its totient is φ = 12690898752.

The previous prime is 32040402139. The next prime is 32040402151. The reversal of 32040402140 is 4120404023.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836897 + ... + 874343.

It is an arithmetic number, because the mean of its divisors is an integer number (1415534400).

Almost surely, 2^32040402140 is an apocalyptic number.

It is an amenable number.

32040402140 is an abundant number, since it is smaller than the sum of its proper divisors (35905249060).

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

32040402140 is a wasteful number, since it uses less digits than its factorization.

32040402140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37874 (or 37872 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 32040402140 its reverse (4120404023), we get a palindrome (36160806163).

The spelling of 32040402140 in words is "thirty-two billion, forty million, four hundred two thousand, one hundred forty".