38659990 has 16 divisors (see below), whose sum is σ = 69693552. Its totient is φ = 15440544.

The previous prime is 38659981. The next prime is 38660021. The reversal of 38659990 is 9995683.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5017 + ... + 10123.

It is an arithmetic number, because the mean of its divisors is an integer number (4355847).

Almost surely, 2^38659990 is an apocalyptic number.

38659990 is a deficient number, since it is larger than the sum of its proper divisors (31033562).

38659990 is a wasteful number, since it uses less digits than its factorization.

38659990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 38659990 is about 6217.7158185301. The cubic root of 38659990 is about 338.1327571585.

The spelling of 38659990 in words is "thirty-eight million, six hundred fifty-nine thousand, nine hundred ninety".