1840905044 has 24 divisors (see below), whose sum is σ = 3721189248. Its totient is φ = 787552640.

The previous prime is 1840905013. The next prime is 1840905089. The reversal of 1840905044 is 4405090481.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1840904995 and 1840905013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1229804 + ... + 1231299.

It is an arithmetic number, because the mean of its divisors is an integer number (155049552).

Almost surely, 2^1840905044 is an apocalyptic number.

It is an amenable number.

1840905044 is an abundant number, since it is smaller than the sum of its proper divisors (1880284204).

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

1840905044 is a wasteful number, since it uses less digits than its factorization.

1840905044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461135 (or 2461133 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 1840905044 is about 42905.7693556473. The cubic root of 1840905044 is about 1225.5860128864.

The spelling of 1840905044 in words is "one billion, eight hundred forty million, nine hundred five thousand, forty-four".