140429680 has 20 divisors (see below), whose sum is σ = 326499192. Its totient is φ = 56171840.

The previous prime is 140429657. The next prime is 140429699. The reversal of 140429680 is 86924041.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877606 + ... + 877765.

Almost surely, 2^140429680 is an apocalyptic number.

140429680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140429680 is an abundant number, since it is smaller than the sum of its proper divisors (186069512).

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

140429680 is a wasteful number, since it uses less digits than its factorization.

140429680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755384 (or 1755378 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 140429680 is about 11850.3029497140. The cubic root of 140429680 is about 519.7800845225.

The spelling of 140429680 in words is "one hundred forty million, four hundred twenty-nine thousand, six hundred eighty".