32740462640 has 40 divisors (see below), whose sum is σ = 76151414688. Its totient is φ = 13091051520.

The previous prime is 32740462637. The next prime is 32740462661. The reversal of 32740462640 is 4626404723.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 32740462594 and 32740462603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128525 + ... + 286355.

Almost surely, 2^32740462640 is an apocalyptic number.

It is an amenable number.

32740462640 is an abundant number, since it is smaller than the sum of its proper divisors (43410952048).

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

32740462640 is a wasteful number, since it uses less digits than its factorization.

32740462640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160437 (or 160431 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 38.

The spelling of 32740462640 in words is "thirty-two billion, seven hundred forty million, four hundred sixty-two thousand, six hundred forty".