38849930 has 32 divisors (see below), whose sum is σ = 84623616. Its totient is φ = 12536064.

The previous prime is 38849917. The next prime is 38849933. The reversal of 38849930 is 3994883.

It is a super-2 number, since 2×38849930² = 3018634122009800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (38849933) 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 15 ways as a sum of consecutive naturals, for example, 15134 + ... + 17513.

It is an arithmetic number, because the mean of its divisors is an integer number (2644488).

Almost surely, 2^38849930 is an apocalyptic number.

38849930 is an abundant number, since it is smaller than the sum of its proper divisors (45773686).

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

38849930 is a wasteful number, since it uses less digits than its factorization.

38849930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32678.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 38849930 is about 6232.9712016020. The cubic root of 38849930 is about 338.6856115962.

The spelling of 38849930 in words is "thirty-eight million, eight hundred forty-nine thousand, nine hundred thirty".