1818274 has 8 divisors (see below), whose sum is σ = 2815488. Its totient is φ = 879780.

The previous prime is 1818241. The next prime is 1818277. The reversal of 1818274 is 4728181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1818274² = 6612240678152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (1818277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14602 + ... + 14725.

It is an arithmetic number, because the mean of its divisors is an integer number (351936).

2^1818274 is an apocalyptic number.

1818274 is a deficient number, since it is larger than the sum of its proper divisors (997214).

1818274 is a wasteful number, since it uses less digits than its factorization.

1818274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29360.

The product of its digits is 3584, while the sum is 31.

The square root of 1818274 is about 1348.4339064263. The cubic root of 1818274 is about 122.0543070951.

The spelling of 1818274 in words is "one million, eight hundred eighteen thousand, two hundred seventy-four".