140656432 has 20 divisors (see below), whose sum is σ = 311453776. Its totient is φ = 60281280.

The previous prime is 140656427. The next prime is 140656433. The reversal of 140656432 is 234656041.

It is a junction number, because it is equal to n+sod(n) for n = 140656394 and 140656403.

It is not an unprimeable number, because it can be changed into a prime (140656433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627819 + ... + 628042.

Almost surely, 2^140656432 is an apocalyptic number.

It is an amenable number.

140656432 is an abundant number, since it is smaller than the sum of its proper divisors (170797344).

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

140656432 is a wasteful number, since it uses less digits than its factorization.

140656432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255876 (or 1255870 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 140656432 is about 11859.8664410692. The cubic root of 140656432 is about 520.0596972884.

It can be divided in two parts, 1406564 and 32, that added together give a square (1406596 = 1186²).

The spelling of 140656432 in words is "one hundred forty million, six hundred fifty-six thousand, four hundred thirty-two".