140680808 has 16 divisors (see below), whose sum is σ = 270906180. Its totient is φ = 68439168.

The previous prime is 140680783. The next prime is 140680817. The reversal of 140680808 is 808086041.

It can be written as a sum of positive squares in 2 ways, for example, as 140612164 + 68644 = 11858^2 + 262^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237341 + ... + 237932.

Almost surely, 2^140680808 is an apocalyptic number.

It is an amenable number.

140680808 is a deficient number, since it is larger than the sum of its proper divisors (130225372).

140680808 is a wasteful number, since it uses less digits than its factorization.

140680808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475316 (or 475312 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 140680808 is about 11860.8940641083. The cubic root of 140680808 is about 520.0897379644.

The spelling of 140680808 in words is "one hundred forty million, six hundred eighty thousand, eight hundred eight".