1144022464 has 56 divisors (see below), whose sum is σ = 2448974528. Its totient is φ = 527109120.

The previous prime is 1144022459. The next prime is 1144022501. The reversal of 1144022464 is 4642204411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928729 + ... + 929959.

It is an arithmetic number, because the mean of its divisors is an integer number (43731688).

Almost surely, 2^1144022464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144022464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1224487264).

1144022464 is an abundant number, since it is smaller than the sum of its proper divisors (1304952064).

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

1144022464 is a wasteful number, since it uses less digits than its factorization.

1144022464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373 (or 2363 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 1144022464 is about 33823.4011299869. The cubic root of 1144022464 is about 1045.8711519637.

Adding to 1144022464 its reverse (4642204411), we get a palindrome (5786226875).

The spelling of 1144022464 in words is "one billion, one hundred forty-four million, twenty-two thousand, four hundred sixty-four".