140256680 has 64 divisors (see below), whose sum is σ = 322218000. Its totient is φ = 54937600.

The previous prime is 140256671. The next prime is 140256707. The reversal of 140256680 is 86652041.

It can be written as a sum of positive squares in 8 ways, for example, as 48748324 + 91508356 = 6982^2 + 9566^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601844 + ... + 602076.

Almost surely, 2^140256680 is an apocalyptic number.

140256680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140256680 is an abundant number, since it is smaller than the sum of its proper divisors (181961320).

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

140256680 is a wasteful number, since it uses less digits than its factorization.

140256680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 140256680 is about 11843.0013087899. The cubic root of 140256680 is about 519.5665520132.

The spelling of 140256680 in words is "one hundred forty million, two hundred fifty-six thousand, six hundred eighty".