1840480 has 24 divisors (see below), whose sum is σ = 4348512. Its totient is φ = 736128.

The previous prime is 1840469. The next prime is 1840493. The reversal of 1840480 is 840481.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5592 + ... + 5911.

It is an arithmetic number, because the mean of its divisors is an integer number (181188).

2^1840480 is an apocalyptic number.

1840480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1840480 is an abundant number, since it is smaller than the sum of its proper divisors (2508032).

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

1840480 is a wasteful number, since it uses less digits than its factorization.

1840480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11518 (or 11510 counting only the distinct ones).

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

The square root of 1840480 is about 1356.6429154350. The cubic root of 1840480 is about 122.5491681010.

Subtracting from 1840480 its reverse (840481), we obtain a palindrome (999999).

The spelling of 1840480 in words is "one million, eight hundred forty thousand, four hundred eighty".