39364638 has 16 divisors (see below), whose sum is σ = 82152576. Its totient is φ = 12551000.

The previous prime is 39364603. The next prime is 39364657. The reversal of 39364638 is 83646393.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 39364638.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142488 + ... + 142763.

It is an arithmetic number, because the mean of its divisors is an integer number (5134536).

Almost surely, 2^39364638 is an apocalyptic number.

39364638 is an abundant number, since it is smaller than the sum of its proper divisors (42787938).

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

39364638 is a wasteful number, since it uses less digits than its factorization.

39364638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285279.

The product of its digits is 279936, while the sum is 42.

The square root of 39364638 is about 6274.1244807543. The cubic root of 39364638 is about 340.1747602154.

The spelling of 39364638 in words is "thirty-nine million, three hundred sixty-four thousand, six hundred thirty-eight".