39389616 has 120 divisors (see below), whose sum is σ = 131539200. Its totient is φ = 10758528.

The previous prime is 39389611. The next prime is 39389617. The reversal of 39389616 is 61698393.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (39389611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22335 + ... + 24033.

It is an arithmetic number, because the mean of its divisors is an integer number (1096160).

Almost surely, 2^39389616 is an apocalyptic number.

39389616 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39389616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65769600).

39389616 is an abundant number, since it is smaller than the sum of its proper divisors (92149584).

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

39389616 is a wasteful number, since it uses less digits than its factorization.

39389616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743 (or 1734 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 39389616 is about 6276.1147217048. The cubic root of 39389616 is about 340.2466952401.

It can be divided in two parts, 393 and 89616, that added together give a palindrome (90009).

The spelling of 39389616 in words is "thirty-nine million, three hundred eighty-nine thousand, six hundred sixteen".