140689670 has 16 divisors (see below), whose sum is σ = 276263568. Its totient is φ = 51159840.

The previous prime is 140689669. The next prime is 140689691. The reversal of 140689670 is 76986041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639389 + ... + 639608.

It is an arithmetic number, because the mean of its divisors is an integer number (17266473).

Almost surely, 2^140689670 is an apocalyptic number.

140689670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140689670 is a deficient number, since it is larger than the sum of its proper divisors (135573898).

140689670 is a wasteful number, since it uses less digits than its factorization.

140689670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279015.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 140689670 is about 11861.2676388319. The cubic root of 140689670 is about 520.1006585218.

The spelling of 140689670 in words is "one hundred forty million, six hundred eighty-nine thousand, six hundred seventy".