140668672 has 36 divisors (see below), whose sum is σ = 288396136. Its totient is φ = 68428800.

The previous prime is 140668657. The next prime is 140668673. The reversal of 140668672 is 276866041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140668673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2047 + ... + 16897.

Almost surely, 2^140668672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140668672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144198068).

140668672 is an abundant number, since it is smaller than the sum of its proper divisors (147727464).

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

140668672 is an equidigital number, since it uses as much as digits as its factorization.

140668672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14904 (or 14890 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 140668672 is about 11860.3824558907. The cubic root of 140668672 is about 520.0747821443.

The spelling of 140668672 in words is "one hundred forty million, six hundred sixty-eight thousand, six hundred seventy-two".