1808274 has 32 divisors (see below), whose sum is σ = 3951360. Its totient is φ = 548352.

The previous prime is 1808269. The next prime is 1808281. The reversal of 1808274 is 4728081.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7447 + ... + 7685.

It is an arithmetic number, because the mean of its divisors is an integer number (123480).

2^1808274 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1808274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1975680).

1808274 is an abundant number, since it is smaller than the sum of its proper divisors (2143086).

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

1808274 is a wasteful number, since it uses less digits than its factorization.

1808274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 1808274 is about 1344.7207888629. The cubic root of 1808274 is about 121.8301407554.

The spelling of 1808274 in words is "one million, eight hundred eight thousand, two hundred seventy-four".