38889530 has 16 divisors (see below), whose sum is σ = 70073640. Its totient is φ = 15539712.

The previous prime is 38889517. The next prime is 38889541. The reversal of 38889530 is 3598883.

It can be written as a sum of positive squares in 4 ways, for example, as 37834801 + 1054729 = 6151^2 + 1027^2 .

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14882 + ... + 17298.

Almost surely, 2^38889530 is an apocalyptic number.

38889530 is a deficient number, since it is larger than the sum of its proper divisors (31184110).

38889530 is a wasteful number, since it uses less digits than its factorization.

38889530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 38889530 is about 6236.1470476569. The cubic root of 38889530 is about 338.8006473747.

The spelling of 38889530 in words is "thirty-eight million, eight hundred eighty-nine thousand, five hundred thirty".