39444912 has 120 divisors (see below), whose sum is σ = 125252400. Its totient is φ = 11487744.

The previous prime is 39444907. The next prime is 39444943. The reversal of 39444912 is 21944493.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35014 + ... + 36122.

It is an arithmetic number, because the mean of its divisors is an integer number (1043770).

Almost surely, 2^39444912 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 39444912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62626200).

39444912 is an abundant number, since it is smaller than the sum of its proper divisors (85807488).

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

39444912 is a wasteful number, since it uses less digits than its factorization.

39444912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155 (or 1146 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 39444912 is about 6280.5184499371. The cubic root of 39444912 is about 340.4058360329.

It can be divided in two parts, 3944491 and 2, that added together give a palindrome (3944493).

The spelling of 39444912 in words is "thirty-nine million, four hundred forty-four thousand, nine hundred twelve".