38989970 has 16 divisors (see below), whose sum is σ = 70360920. Its totient is φ = 15556224.

The previous prime is 38989967. The next prime is 38989981. The reversal of 38989970 is 7998983.

It can be written as a sum of positive squares in 4 ways, for example, as 33051001 + 5938969 = 5749^2 + 2437^2 .

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, 677 + ... + 8856.

Almost surely, 2^38989970 is an apocalyptic number.

38989970 is a deficient number, since it is larger than the sum of its proper divisors (31370950).

38989970 is a wasteful number, since it uses less digits than its factorization.

38989970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9949.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 38989970 is about 6244.1949040689. The cubic root of 38989970 is about 339.0920701415.

The spelling of 38989970 in words is "thirty-eight million, nine hundred eighty-nine thousand, nine hundred seventy".