39929244 has 24 divisors (see below), whose sum is σ = 95441808. Its totient is φ = 12984960.

The previous prime is 39929237. The next prime is 39929249. The reversal of 39929244 is 44292993.

It is a junction number, because it is equal to n+sod(n) for n = 39929196 and 39929205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39929249) by changing a digit.

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, 40087 + ... + 41070.

It is an arithmetic number, because the mean of its divisors is an integer number (3976742).

Almost surely, 2^39929244 is an apocalyptic number.

It is an amenable number.

39929244 is an abundant number, since it is smaller than the sum of its proper divisors (55512564).

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

39929244 is a wasteful number, since it uses less digits than its factorization.

39929244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81205 (or 81203 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 39929244 is about 6318.9590914960. The cubic root of 39929244 is about 341.7934185543.

The spelling of 39929244 in words is "thirty-nine million, nine hundred twenty-nine thousand, two hundred forty-four".