140689672 has 32 divisors (see below), whose sum is σ = 273893400. Its totient is φ = 67669504.

The previous prime is 140689669. The next prime is 140689691. The reversal of 140689672 is 276986041.

It can be written as a sum of positive squares in 4 ways, for example, as 114618436 + 26071236 = 10706^2 + 5106^2 .

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, 72588 + ... + 74500.

Almost surely, 2^140689672 is an apocalyptic number.

It is an amenable number.

140689672 is a deficient number, since it is larger than the sum of its proper divisors (133203728).

140689672 is a wasteful number, since it uses less digits than its factorization.

140689672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265 (or 2261 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 140689672 is about 11861.2677231399. The cubic root of 140689672 is about 520.1006609863.

The spelling of 140689672 in words is "one hundred forty million, six hundred eighty-nine thousand, six hundred seventy-two".