1031989960 has 64 divisors (see below), whose sum is σ = 2353927680. Its totient is φ = 407151360.

The previous prime is 1031989949. The next prime is 1031989961. The reversal of 1031989960 is 699891301.

1031989960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1031989960.

It is not an unprimeable number, because it can be changed into a prime (1031989961) 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, 1907290 + ... + 1907830.

It is an arithmetic number, because the mean of its divisors is an integer number (36780120).

Almost surely, 2^1031989960 is an apocalyptic number.

1031989960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031989960 is an abundant number, since it is smaller than the sum of its proper divisors (1321937720).

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

1031989960 is a wasteful number, since it uses less digits than its factorization.

1031989960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 46.

The square root of 1031989960 is about 32124.6005422636. The cubic root of 1031989960 is about 1010.5515923087.

The spelling of 1031989960 in words is "one billion, thirty-one million, nine hundred eighty-nine thousand, nine hundred sixty".