1045989324 has 72 divisors (see below), whose sum is σ = 2738631168. Its totient is φ = 336399840.

The previous prime is 1045989293. The next prime is 1045989341. The reversal of 1045989324 is 4239895401.

It is a self number, because there is not a number n which added to its sum of digits gives 1045989324.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115779 + ... + 124485.

It is an arithmetic number, because the mean of its divisors is an integer number (38036544).

Almost surely, 2^1045989324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045989324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1369315584).

1045989324 is an abundant number, since it is smaller than the sum of its proper divisors (1692641844).

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

1045989324 is a wasteful number, since it uses less digits than its factorization.

1045989324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8835 (or 8830 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 1045989324 is about 32341.7582082360. The cubic root of 1045989324 is about 1015.1005987958.

The spelling of 1045989324 in words is "one billion, forty-five million, nine hundred eighty-nine thousand, three hundred twenty-four".