39140668 has 12 divisors (see below), whose sum is σ = 78281392. Its totient is φ = 16774560.

The previous prime is 39140653. The next prime is 39140669. The reversal of 39140668 is 86604193.

39140668 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39140669) 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, 698913 + ... + 698968.

Almost surely, 2^39140668 is an apocalyptic number.

It is an amenable number.

39140668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

39140668 is a wasteful number, since it uses less digits than its factorization.

39140668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397892 (or 1397890 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 39140668 is about 6256.2503146853. The cubic root of 39140668 is about 339.5283772443.

The spelling of 39140668 in words is "thirty-nine million, one hundred forty thousand, six hundred sixty-eight".