39949792 has 24 divisors (see below), whose sum is σ = 78885576. Its totient is φ = 19915392.

The previous prime is 39949739. The next prime is 39949829. The reversal of 39949792 is 29794993.

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 3 ways as a sum of consecutive naturals, for example, 10263 + ... + 13609.

It is an arithmetic number, because the mean of its divisors is an integer number (3286899).

Almost surely, 2^39949792 is an apocalyptic number.

39949792 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

39949792 is a deficient number, since it is larger than the sum of its proper divisors (38935784).

39949792 is a wasteful number, since it uses less digits than its factorization.

39949792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730 (or 3722 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 52.

The square root of 39949792 is about 6320.5847830719. The cubic root of 39949792 is about 341.8520386372.

The spelling of 39949792 in words is "thirty-nine million, nine hundred forty-nine thousand, seven hundred ninety-two".