1814040 has 48 divisors (see below), whose sum is σ = 5896800. Its totient is φ = 483648.

The previous prime is 1814039. The next prime is 1814047. The reversal of 1814040 is 404181.

It is a super-2 number, since 2×1814040² = 6581482243200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1814047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2160 + ... + 2879.

It is an arithmetic number, because the mean of its divisors is an integer number (122850).

2^1814040 is an apocalyptic number.

1814040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1814040 is an abundant number, since it is smaller than the sum of its proper divisors (4082760).

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

1814040 is a wasteful number, since it uses less digits than its factorization.

1814040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056 (or 5049 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1814040 is about 1346.8630219885. The cubic root of 1814040 is about 121.9594956465.

The spelling of 1814040 in words is "one million, eight hundred fourteen thousand, forty".