1144023426 has 160 divisors (see below), whose sum is σ = 3202391808. Its totient is φ = 297198720.

The previous prime is 1144023409. The next prime is 1144023467. The reversal of 1144023426 is 6243204411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1144023426.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1046136 + ... + 1047228.

Almost surely, 2^1144023426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144023426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1601195904).

1144023426 is an abundant number, since it is smaller than the sum of its proper divisors (2058368382).

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

1144023426 is a wasteful number, since it uses less digits than its factorization.

1144023426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1144023426 is about 33823.4153509074. The cubic root of 1144023426 is about 1045.8714451187.

Adding to 1144023426 its reverse (6243204411), we get a palindrome (7387227837).

The spelling of 1144023426 in words is "one billion, one hundred forty-four million, twenty-three thousand, four hundred twenty-six".