1144458 has 48 divisors (see below), whose sum is σ = 2935296. Its totient is φ = 315360.

The previous prime is 1144453. The next prime is 1144477. The reversal of 1144458 is 8544411.

It is a happy number.

It is a super-2 number, since 2×1144458² = 2619568227528, which contains 22 as substring.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1144453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3760 + ... + 4052.

It is an arithmetic number, because the mean of its divisors is an integer number (61152).

2^1144458 is an apocalyptic number.

1144458 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1467648).

1144458 is an abundant number, since it is smaller than the sum of its proper divisors (1790838).

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

1144458 is a wasteful number, since it uses less digits than its factorization.

1144458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 336 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 1144458 is about 1069.7934380057. The cubic root of 1144458 is about 104.6003858199.

Adding to 1144458 its reverse (8544411), we get a palindrome (9688869).

The spelling of 1144458 in words is "one million, one hundred forty-four thousand, four hundred fifty-eight".