1144320422 has 48 divisors (see below), whose sum is σ = 2182474368. Its totient is φ = 446664960.

The previous prime is 1144320409. The next prime is 1144320461. The reversal of 1144320422 is 2240234411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40568 + ... + 62724.

It is an arithmetic number, because the mean of its divisors is an integer number (45468216).

Almost surely, 2^1144320422 is an apocalyptic number.

1144320422 is a deficient number, since it is larger than the sum of its proper divisors (1038153946).

1144320422 is a wasteful number, since it uses less digits than its factorization.

1144320422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22221 (or 22214 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1144320422 is about 33827.8054564584. The cubic root of 1144320422 is about 1045.9619423215.

Adding to 1144320422 its reverse (2240234411), we get a palindrome (3384554833).

The spelling of 1144320422 in words is "one billion, one hundred forty-four million, three hundred twenty thousand, four hundred twenty-two".