1089242 has 24 divisors (see below), whose sum is σ = 2055648. Its totient is φ = 423720.

The previous prime is 1089239. The next prime is 1089259. The reversal of 1089242 is 2429801.

1089242 is nontrivially palindromic in base 5.

1089242 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1373 + ... + 2015.

It is an arithmetic number, because the mean of its divisors is an integer number (85652).

2^1089242 is an apocalyptic number.

1089242 is a deficient number, since it is larger than the sum of its proper divisors (966406).

1089242 is a wasteful number, since it uses less digits than its factorization.

1089242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1089242 is about 1043.6675715955. The cubic root of 1089242 is about 102.8903851621.

It can be divided in two parts, 1089 and 242, that added together give a palindrome (1331).

The spelling of 1089242 in words is "one million, eighty-nine thousand, two hundred forty-two".