39128650 has 24 divisors (see below), whose sum is σ = 79396704. Its totient is φ = 14228400.

The previous prime is 39128629. The next prime is 39128651. The reversal of 39128650 is 5682193.

It is not an unprimeable number, because it can be changed into a prime (39128651) 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 11 ways as a sum of consecutive naturals, for example, 35022 + ... + 36121.

It is an arithmetic number, because the mean of its divisors is an integer number (3308196).

Almost surely, 2^39128650 is an apocalyptic number.

39128650 is an abundant number, since it is smaller than the sum of its proper divisors (40268054).

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

39128650 is a wasteful number, since it uses less digits than its factorization.

39128650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71166 (or 71161 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 39128650 is about 6255.2897614739. The cubic root of 39128650 is about 339.4936233685.

The spelling of 39128650 in words is "thirty-nine million, one hundred twenty-eight thousand, six hundred fifty".