1814020 has 24 divisors (see below), whose sum is σ = 4103064. Its totient is φ = 669696.

The previous prime is 1814011. The next prime is 1814023. The reversal of 1814020 is 204181.

1814020 = 134² + 135² + ... + 198².

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2304 + 1811716 = 48^2 + 1346^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1813985 and 1814003.

It is not an unprimeable number, because it can be changed into a prime (1814023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3229 + ... + 3748.

It is an arithmetic number, because the mean of its divisors is an integer number (170961).

2^1814020 is an apocalyptic number.

1814020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1814020 is an abundant number, since it is smaller than the sum of its proper divisors (2289044).

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

1814020 is a wasteful number, since it uses less digits than its factorization.

1814020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6999 (or 6997 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1814020 is about 1346.8555973080. The cubic root of 1814020 is about 121.9590474390.

The spelling of 1814020 in words is "one million, eight hundred fourteen thousand, twenty".