140073668 has 24 divisors (see below), whose sum is σ = 282926784. Its totient is φ = 59436000.

The previous prime is 140073653. The next prime is 140073679. The reversal of 140073668 is 866370041.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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, 21938 + ... + 27593.

It is an arithmetic number, because the mean of its divisors is an integer number (11788616).

Almost surely, 2^140073668 is an apocalyptic number.

It is an amenable number.

140073668 is an abundant number, since it is smaller than the sum of its proper divisors (142853116).

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

140073668 is a wasteful number, since it uses less digits than its factorization.

140073668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49643 (or 49641 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 140073668 is about 11835.2721979682. The cubic root of 140073668 is about 519.3404705615.

The spelling of 140073668 in words is "one hundred forty million, seventy-three thousand, six hundred sixty-eight".