1804480 has 28 divisors (see below), whose sum is σ = 4297680. Its totient is φ = 721664.

The previous prime is 1804477. The next prime is 1804489. The reversal of 1804480 is 844081.

It is a super-2 number, since 2×1804480² = 6512296140800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1804489) 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, 2500 + ... + 3139.

2^1804480 is an apocalyptic number.

1804480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1804480 is an abundant number, since it is smaller than the sum of its proper divisors (2493200).

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

1804480 is an equidigital number, since it uses as much as digits as its factorization.

1804480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5656 (or 5646 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 1804480 is about 1343.3093463533. The cubic root of 1804480 is about 121.7448758010.

The spelling of 1804480 in words is "one million, eight hundred four thousand, four hundred eighty".