39499028 has 12 divisors (see below), whose sum is σ = 69168372. Its totient is φ = 19736640.

The previous prime is 39499021. The next prime is 39499039. The reversal of 39499028 is 82099493.

It can be written as a sum of positive squares in 2 ways, for example, as 11641744 + 27857284 = 3412^2 + 5278^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 39499028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39499021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8126 + ... + 12042.

It is an arithmetic number, because the mean of its divisors is an integer number (5764031).

Almost surely, 2^39499028 is an apocalyptic number.

It is an amenable number.

39499028 is a deficient number, since it is larger than the sum of its proper divisors (29669344).

39499028 is a wasteful number, since it uses less digits than its factorization.

39499028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6442 (or 6440 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 39499028 is about 6284.8252163445. The cubic root of 39499028 is about 340.5614368727.

The spelling of 39499028 in words is "thirty-nine million, four hundred ninety-nine thousand, twenty-eight".