140239680 has 224 divisors, whose sum is σ = 522305280. Its totient is φ = 31211520.

The previous prime is 140239669. The next prime is 140239699. The reversal of 140239680 is 86932041.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275266 + ... + 275774.

It is an arithmetic number, because the mean of its divisors is an integer number (2331720).

Almost surely, 2^140239680 is an apocalyptic number.

140239680 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 140239680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261152640).

140239680 is an abundant number, since it is smaller than the sum of its proper divisors (382065600).

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

140239680 is a wasteful number, since it uses less digits than its factorization.

140239680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 140239680 is about 11842.2835635700. The cubic root of 140239680 is about 519.5455595768.

The spelling of 140239680 in words is "one hundred forty million, two hundred thirty-nine thousand, six hundred eighty".