32400073432 has 8 divisors (see below), whose sum is σ = 60750137700. Its totient is φ = 16200036712.

The previous prime is 32400073423. The next prime is 32400073451. The reversal of 32400073432 is 23437000423.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 32400073432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2025004582 + ... + 2025004597.

Almost surely, 2^32400073432 is an apocalyptic number.

It is an amenable number.

32400073432 is a deficient number, since it is larger than the sum of its proper divisors (28350064268).

32400073432 is a wasteful number, since it uses less digits than its factorization.

32400073432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4050009185 (or 4050009181 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 28.

Adding to 32400073432 its reverse (23437000423), we get a palindrome (55837073855).

The spelling of 32400073432 in words is "thirty-two billion, four hundred million, seventy-three thousand, four hundred thirty-two".