140400568 has 64 divisors (see below), whose sum is σ = 329702400. Its totient is φ = 54453120.

The previous prime is 140400563. The next prime is 140400593. The reversal of 140400568 is 865004041.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140400563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194913 + ... + 195631.

It is an arithmetic number, because the mean of its divisors is an integer number (5151600).

Almost surely, 2^140400568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140400568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164851200).

140400568 is an abundant number, since it is smaller than the sum of its proper divisors (189301832).

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

140400568 is a wasteful number, since it uses less digits than its factorization.

140400568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 140400568 is about 11849.0745630197. The cubic root of 140400568 is about 519.7441640922.

The spelling of 140400568 in words is "one hundred forty million, four hundred thousand, five hundred sixty-eight".