140157808 has 20 divisors (see below), whose sum is σ = 310349680. Its totient is φ = 60067584.

The previous prime is 140157799. The next prime is 140157821. The reversal of 140157808 is 808751041.

It is a super-2 number, since 2×140157808² = 39288422286729728, which contains 22 as substring.

It is a congruent number.

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, 625593 + ... + 625816.

It is an arithmetic number, because the mean of its divisors is an integer number (15517484).

Almost surely, 2^140157808 is an apocalyptic number.

It is an amenable number.

140157808 is an abundant number, since it is smaller than the sum of its proper divisors (170191872).

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

140157808 is a wasteful number, since it uses less digits than its factorization.

140157808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251424 (or 1251418 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 140157808 is about 11838.8262931762. The cubic root of 140157808 is about 519.4444362374. Note that the first 4 decimals are identical.

The spelling of 140157808 in words is "one hundred forty million, one hundred fifty-seven thousand, eight hundred eight".