1081868922 has 12 divisors (see below), whose sum is σ = 2344049370. Its totient is φ = 360622968.

The previous prime is 1081868869. The next prime is 1081868923. The reversal of 1081868922 is 2298681801.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 768897441 + 312971481 = 27729^2 + 17691^2 .

It is not an unprimeable number, because it can be changed into a prime (1081868923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30051897 + ... + 30051932.

Almost surely, 2^1081868922 is an apocalyptic number.

1081868922 is an abundant number, since it is smaller than the sum of its proper divisors (1262180448).

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

1081868922 is a wasteful number, since it uses less digits than its factorization.

1081868922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60103837 (or 60103834 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 1081868922 is about 32891.7759021917. The cubic root of 1081868922 is about 1026.5770439326.

The spelling of 1081868922 in words is "one billion, eighty-one million, eight hundred sixty-eight thousand, nine hundred twenty-two".