39640414 has 16 divisors (see below), whose sum is σ = 65026800. Its totient is φ = 17973760.

The previous prime is 39640409. The next prime is 39640417. The reversal of 39640414 is 41404693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39640417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7872 + ... + 11884.

It is an arithmetic number, because the mean of its divisors is an integer number (4064175).

Almost surely, 2^39640414 is an apocalyptic number.

39640414 is a deficient number, since it is larger than the sum of its proper divisors (25386386).

39640414 is a wasteful number, since it uses less digits than its factorization.

39640414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 39640414 is about 6296.0633732516. The cubic root of 39640414 is about 340.9672973400.

The spelling of 39640414 in words is "thirty-nine million, six hundred forty thousand, four hundred fourteen".