1158426 has 24 divisors (see below), whose sum is σ = 2533440. Its totient is φ = 382536.

The previous prime is 1158419. The next prime is 1158427. The reversal of 1158426 is 6248511.

1158426 = 13² + 14² + ... + 151².

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1158426.

It is not an unprimeable number, because it can be changed into a prime (1158427) 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, 2271 + ... + 2733.

It is an arithmetic number, because the mean of its divisors is an integer number (105560).

2^1158426 is an apocalyptic number.

1158426 is an abundant number, since it is smaller than the sum of its proper divisors (1375014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1158426 is a wasteful number, since it uses less digits than its factorization.

1158426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 607 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 1158426 is about 1076.3020022280. The cubic root of 1158426 is about 105.0242121035.

The spelling of 1158426 in words is "one million, one hundred fifty-eight thousand, four hundred twenty-six".