140557680 has 200 divisors, whose sum is σ = 495132000. Its totient is φ = 36951552.

The previous prime is 140557679. The next prime is 140557691. The reversal of 140557680 is 86755041.

140557680 is a `hidden beast` number, since 1 + 4 + 0 + 5 + 576 + 80 = 666.

It is a super-2 number, since 2×140557680² = 39512922813964800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 706221 + ... + 706419.

It is an arithmetic number, because the mean of its divisors is an integer number (2475660).

Almost surely, 2^140557680 is an apocalyptic number.

140557680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140557680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247566000).

140557680 is an abundant number, since it is smaller than the sum of its proper divisors (354574320).

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

140557680 is a wasteful number, since it uses less digits than its factorization.

140557680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 140557680 is about 11855.7024254154. The cubic root of 140557680 is about 519.9379610405.

The spelling of 140557680 in words is "one hundred forty million, five hundred fifty-seven thousand, six hundred eighty".