1039889642 has 32 divisors (see below), whose sum is σ = 1747182528. Its totient is φ = 460080000.

The previous prime is 1039889629. The next prime is 1039889663. The reversal of 1039889642 is 2469889301.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486917 + ... + 489047.

It is an arithmetic number, because the mean of its divisors is an integer number (54599454).

Almost surely, 2^1039889642 is an apocalyptic number.

1039889642 is a deficient number, since it is larger than the sum of its proper divisors (707292886).

1039889642 is a wasteful number, since it uses less digits than its factorization.

1039889642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 1039889642 is about 32247.3199196460. The cubic root of 1039889642 is about 1013.1235659354.

The spelling of 1039889642 in words is "one billion, thirty-nine million, eight hundred eighty-nine thousand, six hundred forty-two".