140630680 has 32 divisors (see below), whose sum is σ = 319982400. Its totient is φ = 55618816.

The previous prime is 140630669. The next prime is 140630687. The reversal of 140630680 is 86036041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140630687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16192 + ... + 23311.

It is an arithmetic number, because the mean of its divisors is an integer number (9999450).

Almost surely, 2^140630680 is an apocalyptic number.

140630680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140630680 is an abundant number, since it is smaller than the sum of its proper divisors (179351720).

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

140630680 is a wasteful number, since it uses less digits than its factorization.

140630680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39603 (or 39599 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 140630680 is about 11858.7807130413. The cubic root of 140630680 is about 520.0279570768.

The spelling of 140630680 in words is "one hundred forty million, six hundred thirty thousand, six hundred eighty".