989870042 has 32 divisors (see below), whose sum is σ = 1709807232. Its totient is φ = 421023744.

The previous prime is 989870041. The next prime is 989870053. The reversal of 989870042 is 240078989.

989870042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (989870041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1715258 + ... + 1715834.

It is an arithmetic number, because the mean of its divisors is an integer number (53431476).

Almost surely, 2^989870042 is an apocalyptic number.

989870042 is a deficient number, since it is larger than the sum of its proper divisors (719937190).

989870042 is a wasteful number, since it uses less digits than its factorization.

989870042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 989870042 is about 31462.2002091399. The cubic root of 989870042 is about 996.6118809471.

The spelling of 989870042 in words is "nine hundred eighty-nine million, eight hundred seventy thousand, forty-two".