140645580 has 48 divisors (see below), whose sum is σ = 403419744. Its totient is φ = 36590080.

The previous prime is 140645579. The next prime is 140645627. The reversal of 140645580 is 85546041.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26127 + ... + 31046.

It is an arithmetic number, because the mean of its divisors is an integer number (8404578).

Almost surely, 2^140645580 is an apocalyptic number.

140645580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140645580 is an abundant number, since it is smaller than the sum of its proper divisors (262774164).

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

140645580 is a wasteful number, since it uses less digits than its factorization.

140645580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57226 (or 57224 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 140645580 is about 11859.4089228764. The cubic root of 140645580 is about 520.0463223034.

The spelling of 140645580 in words is "one hundred forty million, six hundred forty-five thousand, five hundred eighty".