1804841140 has 12 divisors (see below), whose sum is σ = 3790166436. Its totient is φ = 721936448.

The previous prime is 1804841113. The next prime is 1804841147. The reversal of 1804841140 is 411484081.

It can be written as a sum of positive squares in 2 ways, for example, as 730837156 + 1074003984 = 27034^2 + 32772^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804841147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45121009 + ... + 45121048.

It is an arithmetic number, because the mean of its divisors is an integer number (315847203).

Almost surely, 2^1804841140 is an apocalyptic number.

1804841140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1804841140 is an abundant number, since it is smaller than the sum of its proper divisors (1985325296).

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

1804841140 is a wasteful number, since it uses less digits than its factorization.

1804841140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90242066 (or 90242064 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 1804841140 is about 42483.4219431533. The cubic root of 1804841140 is about 1217.5299707172.

The spelling of 1804841140 in words is "one billion, eight hundred four million, eight hundred forty-one thousand, one hundred forty".