39689244 has 96 divisors (see below), whose sum is σ = 120207360. Its totient is φ = 11088576.

The previous prime is 39689239. The next prime is 39689257. The reversal of 39689244 is 44298693.

39689244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 39689244.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34974 + ... + 36090.

It is an arithmetic number, because the mean of its divisors is an integer number (1252160).

Almost surely, 2^39689244 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 39689244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60103680).

39689244 is an abundant number, since it is smaller than the sum of its proper divisors (80518116).

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

39689244 is a wasteful number, since it uses less digits than its factorization.

39689244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184 (or 1176 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 39689244 is about 6299.9399997143. The cubic root of 39689244 is about 341.1072437544.

The spelling of 39689244 in words is "thirty-nine million, six hundred eighty-nine thousand, two hundred forty-four".