140197680 has 120 divisors (see below), whose sum is σ = 538111392. Its totient is φ = 32044032.

The previous prime is 140197679. The next prime is 140197721. The reversal of 140197680 is 86791041.

140197680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8869 + ... + 18948.

Almost surely, 2^140197680 is an apocalyptic number.

140197680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140197680 is an abundant number, since it is smaller than the sum of its proper divisors (397913712).

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

140197680 is a wasteful number, since it uses less digits than its factorization.

140197680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27843 (or 27834 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 140197680 is about 11840.5101241458. The cubic root of 140197680 is about 519.4936886365.

The spelling of 140197680 in words is "one hundred forty million, one hundred ninety-seven thousand, six hundred eighty".