140666760 has 256 divisors, whose sum is σ = 518918400. Its totient is φ = 33675264.

The previous prime is 140666759. The next prime is 140666767. The reversal of 140666760 is 67666041.

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

It is not an unprimeable number, because it can be changed into a prime (140666767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 603604 + ... + 603836.

It is an arithmetic number, because the mean of its divisors is an integer number (2027025).

Almost surely, 2^140666760 is an apocalyptic number.

140666760 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 140666760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259459200).

140666760 is an abundant number, since it is smaller than the sum of its proper divisors (378251640).

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

140666760 is a wasteful number, since it uses less digits than its factorization.

140666760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 140666760 is about 11860.3018511335. The cubic root of 140666760 is about 520.0724258095.

140666760 divided by its sum of digits (36) gives a triangular number (3907410 = T₂₇₉₅).

The spelling of 140666760 in words is "one hundred forty million, six hundred sixty-six thousand, seven hundred sixty".