1045161860 has 48 divisors (see below), whose sum is σ = 2310650496. Its totient is φ = 396329472.

The previous prime is 1045161833. The next prime is 1045161881. The reversal of 1045161860 is 681615401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41927 + ... + 62033.

It is an arithmetic number, because the mean of its divisors is an integer number (48138552).

Almost surely, 2^1045161860 is an apocalyptic number.

1045161860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045161860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1155325248).

1045161860 is an abundant number, since it is smaller than the sum of its proper divisors (1265488636).

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

1045161860 is a wasteful number, since it uses less digits than its factorization.

1045161860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20252 (or 20250 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 1045161860 is about 32328.9631754562. The cubic root of 1045161860 is about 1014.8328520249.

The spelling of 1045161860 in words is "one billion, forty-five million, one hundred sixty-one thousand, eight hundred sixty".