1804184040 has 64 divisors (see below), whose sum is σ = 5493360960. Its totient is φ = 473932800.

The previous prime is 1804184021. The next prime is 1804184071. The reversal of 1804184040 is 404814081.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1804183989 and 1804184007.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104161 + ... + 120240.

It is an arithmetic number, because the mean of its divisors is an integer number (85833765).

Almost surely, 2^1804184040 is an apocalyptic number.

1804184040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1804184040 is an abundant number, since it is smaller than the sum of its proper divisors (3689176920).

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

1804184040 is a wasteful number, since it uses less digits than its factorization.

1804184040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224482 (or 224478 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 1804184040 is about 42475.6876342220. The cubic root of 1804184040 is about 1217.3821948202.

The spelling of 1804184040 in words is "one billion, eight hundred four million, one hundred eighty-four thousand, forty".