1818480 has 40 divisors (see below), whose sum is σ = 5638032. Its totient is φ = 484864.

The previous prime is 1818469. The next prime is 1818499. The reversal of 1818480 is 848181.

It is a tau number, because it is divible by the number of its divisors (40).

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

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, 3549 + ... + 4028.

2^1818480 is an apocalyptic number.

1818480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1818480 is an abundant number, since it is smaller than the sum of its proper divisors (3819552).

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

1818480 is a wasteful number, since it uses less digits than its factorization.

1818480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7593 (or 7587 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 1818480 is about 1348.5102891710. The cubic root of 1818480 is about 122.0589162717.

Subtracting from 1818480 its reverse (848181), we obtain a cube (970299 = 99³).

The spelling of 1818480 in words is "one million, eight hundred eighteen thousand, four hundred eighty".