140356440 has 96 divisors (see below), whose sum is σ = 521333280. Its totient is φ = 32080896.

The previous prime is 140356417. The next prime is 140356441. The reversal of 140356440 is 44653041.

140356440 is a `hidden beast` number, since 14 + 0 + 3 + 5 + 644 + 0 = 666.

140356440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140356441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25329 + ... + 30368.

It is an arithmetic number, because the mean of its divisors is an integer number (5430555).

Almost surely, 2^140356440 is an apocalyptic number.

140356440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140356440 is an abundant number, since it is smaller than the sum of its proper divisors (380976840).

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

140356440 is a wasteful number, since it uses less digits than its factorization.

140356440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55721 (or 55714 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 140356440 is about 11847.2123303332. The cubic root of 140356440 is about 519.6897063976.

The spelling of 140356440 in words is "one hundred forty million, three hundred fifty-six thousand, four hundred forty".