140386680 has 384 divisors, whose sum is σ = 576201600. Its totient is φ = 28901376.

The previous prime is 140386679. The next prime is 140386691. The reversal of 140386680 is 86683041.

140386680 = 1285² + 1286² + ... + 1364².

It is a happy number.

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 95 ways as a sum of consecutive naturals, for example, 1242304 + ... + 1242416.

It is an arithmetic number, because the mean of its divisors is an integer number (1500525).

Almost surely, 2^140386680 is an apocalyptic number.

140386680 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 140386680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288100800).

140386680 is an abundant number, since it is smaller than the sum of its proper divisors (435814920).

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

140386680 is a wasteful number, since it uses less digits than its factorization.

140386680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 140386680 is about 11848.4885111984. The cubic root of 140386680 is about 519.7270263530.

The spelling of 140386680 in words is "one hundred forty million, three hundred eighty-six thousand, six hundred eighty".