140979408 has 40 divisors (see below), whose sum is σ = 365750400. Its totient is φ = 46792704.

The previous prime is 140979389. The next prime is 140979409. The reversal of 140979408 is 804979041.

It is a self number, because there is not a number n which added to its sum of digits gives 140979408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140979409) 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, 5328 + ... + 17616.

It is an arithmetic number, because the mean of its divisors is an integer number (9143760).

Almost surely, 2^140979408 is an apocalyptic number.

It is an amenable number.

140979408 is an abundant number, since it is smaller than the sum of its proper divisors (224770992).

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

140979408 is a wasteful number, since it uses less digits than its factorization.

140979408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12539 (or 12533 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 140979408 is about 11873.4749757600. The cubic root of 140979408 is about 520.4574475609.

The spelling of 140979408 in words is "one hundred forty million, nine hundred seventy-nine thousand, four hundred eight".