1118434 has 4 divisors (see below), whose sum is σ = 1677654. Its totient is φ = 559216.

The previous prime is 1118419. The next prime is 1118437. The reversal of 1118434 is 4348111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1030225 + 88209 = 1015^2 + 297^2 .

It is a super-2 number, since 2×1118434² = 2501789224712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1118437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279607 + ... + 279610.

2^1118434 is an apocalyptic number.

1118434 is a deficient number, since it is larger than the sum of its proper divisors (559220).

1118434 is an equidigital number, since it uses as much as digits as its factorization.

1118434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559219.

The product of its digits is 384, while the sum is 22.

The square root of 1118434 is about 1057.5604001663. The cubic root of 1118434 is about 103.8014579981.

The spelling of 1118434 in words is "one million, one hundred eighteen thousand, four hundred thirty-four".