140018568 has 32 divisors (see below), whose sum is σ = 361340160. Its totient is φ = 45167040.

The previous prime is 140018563. The next prime is 140018587. The reversal of 140018568 is 865810041.

It is not an unprimeable number, because it can be changed into a prime (140018561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93355 + ... + 94842.

It is an arithmetic number, because the mean of its divisors is an integer number (11291880).

Almost surely, 2^140018568 is an apocalyptic number.

It is an amenable number.

140018568 is an abundant number, since it is smaller than the sum of its proper divisors (221321592).

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

140018568 is a wasteful number, since it uses less digits than its factorization.

140018568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188237 (or 188233 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 140018568 is about 11832.9441813946. The cubic root of 140018568 is about 519.2723649395.

The spelling of 140018568 in words is "one hundred forty million, eighteen thousand, five hundred sixty-eight".