140856140 has 24 divisors (see below), whose sum is σ = 308659680. Its totient is φ = 53892608.

The previous prime is 140856127. The next prime is 140856143. The reversal of 140856140 is 41658041.

It is not an unprimeable number, because it can be changed into a prime (140856143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152645 + ... + 153564.

It is an arithmetic number, because the mean of its divisors is an integer number (12860820).

Almost surely, 2^140856140 is an apocalyptic number.

140856140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140856140 is an abundant number, since it is smaller than the sum of its proper divisors (167803540).

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

140856140 is a wasteful number, since it uses less digits than its factorization.

140856140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306241 (or 306239 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 140856140 is about 11868.2829423637. The cubic root of 140856140 is about 520.3057127384.

The spelling of 140856140 in words is "one hundred forty million, eight hundred fifty-six thousand, one hundred forty".