38139650 has 36 divisors (see below), whose sum is σ = 74905362. Its totient is φ = 14446080.

The previous prime is 38139649. The next prime is 38139677. The reversal of 38139650 is 5693183.

It can be written as a sum of positive squares in 3 ways, for example, as 14295961 + 23843689 = 3781^2 + 4883^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 38139650.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16994 + ... + 19106.

Almost surely, 2^38139650 is an apocalyptic number.

38139650 is a deficient number, since it is larger than the sum of its proper divisors (36765712).

38139650 is a wasteful number, since it uses less digits than its factorization.

38139650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163 (or 2139 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 38139650 is about 6175.7307259951. The cubic root of 38139650 is about 336.6088791883.

The spelling of 38139650 in words is "thirty-eight million, one hundred thirty-nine thousand, six hundred fifty".