1818242 has 24 divisors (see below), whose sum is σ = 3010176. Its totient is φ = 821744.

The previous prime is 1818241. The next prime is 1818277. The reversal of 1818242 is 2428181.

It is a super-3 number, since 3×1818242³ = 18033345814338685464, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1818241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38663 + ... + 38709.

It is an arithmetic number, because the mean of its divisors is an integer number (125424).

2^1818242 is an apocalyptic number.

1818242 is a deficient number, since it is larger than the sum of its proper divisors (1191934).

1818242 is a wasteful number, since it uses less digits than its factorization.

1818242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 101 counting only the distinct ones).

The product of its digits is 1024, while the sum is 26.

The square root of 1818242 is about 1348.4220407573. The cubic root of 1818242 is about 122.0535910753.

The spelling of 1818242 in words is "one million, eight hundred eighteen thousand, two hundred forty-two".