140661360 has 300 divisors, whose sum is σ = 569581848. Its totient is φ = 32078592.

The previous prime is 140661343. The next prime is 140661371. The reversal of 140661360 is 63166041.

140661360 is a `hidden beast` number, since 1 + 40 + 6 + 613 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 317299 + ... + 317741.

Almost surely, 2^140661360 is an apocalyptic number.

140661360 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 140661360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284790924).

140661360 is an abundant number, since it is smaller than the sum of its proper divisors (428920488).

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

140661360 is a wasteful number, since it uses less digits than its factorization.

140661360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 140661360 is about 11860.0741987561. The cubic root of 140661360 is about 520.0657707735.

The spelling of 140661360 in words is "one hundred forty million, six hundred sixty-one thousand, three hundred sixty".