39640104 has 112 divisors (see below), whose sum is σ = 127487520. Its totient is φ = 11314080.

The previous prime is 39640091. The next prime is 39640121. The reversal of 39640104 is 40104693.

39640104 is a `hidden beast` number, since 3 + 9 + 640 + 10 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 40339 + ... + 41309.

Almost surely, 2^39640104 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 39640104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63743760).

39640104 is an abundant number, since it is smaller than the sum of its proper divisors (87847416).

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

39640104 is an equidigital number, since it uses as much as digits as its factorization.

39640104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 39640104 is about 6296.0387546457. The cubic root of 39640104 is about 340.9664085153.

Adding to 39640104 its reverse (40104693), we get a palindrome (79744797).

The spelling of 39640104 in words is "thirty-nine million, six hundred forty thousand, one hundred four".