1144022000 has 160 divisors (see below), whose sum is σ = 3046680000. Its totient is φ = 412032000.

The previous prime is 1144021997. The next prime is 1144022003. The reversal of 1144022000 is 2204411.

It is an interprime number because it is at equal distance from previous prime (1144021997) and next prime (1144022003).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144022003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3277826 + ... + 3278174.

It is an arithmetic number, because the mean of its divisors is an integer number (19041750).

Almost surely, 2^1144022000 is an apocalyptic number.

1144022000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1523340000).

1144022000 is an abundant number, since it is smaller than the sum of its proper divisors (1902658000).

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

1144022000 is a wasteful number, since it uses less digits than its factorization.

1144022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1144022000 is about 33823.3942708298. The cubic root of 1144022000 is about 1045.8710105666.

Adding to 1144022000 its reverse (2204411), we get a palindrome (1146226411).

The spelling of 1144022000 in words is "one billion, one hundred forty-four million, twenty-two thousand".