1089434 has 4 divisors (see below), whose sum is σ = 1634154. Its totient is φ = 544716.

The previous prime is 1089427. The next prime is 1089457. The reversal of 1089434 is 4349801.

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., 1050625 + 38809 = 1025^2 + 197^2 .

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 1089397 and 1089406.

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 as a sum of consecutive naturals, namely, 272357 + ... + 272360.

2^1089434 is an apocalyptic number.

1089434 is a deficient number, since it is larger than the sum of its proper divisors (544720).

1089434 is an equidigital number, since it uses as much as digits as its factorization.

1089434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544719.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1089434 is about 1043.7595508545. The cubic root of 1089434 is about 102.8964302814.

The spelling of 1089434 in words is "one million, eighty-nine thousand, four hundred thirty-four".