1144333428 has 24 divisors (see below), whose sum is σ = 3051556032. Its totient is φ = 326952384.

The previous prime is 1144333409. The next prime is 1144333429. The reversal of 1144333428 is 8243334411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144333429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6811425 + ... + 6811592.

It is an arithmetic number, because the mean of its divisors is an integer number (127148168).

Almost surely, 2^1144333428 is an apocalyptic number.

It is an amenable number.

1144333428 is an abundant number, since it is smaller than the sum of its proper divisors (1907222604).

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

1144333428 is a wasteful number, since it uses less digits than its factorization.

1144333428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13623031 (or 13623029 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 1144333428 is about 33827.9976942177. The cubic root of 1144333428 is about 1045.9659050022.

Adding to 1144333428 its reverse (8243334411), we get a palindrome (9387667839).

The spelling of 1144333428 in words is "one billion, one hundred forty-four million, three hundred thirty-three thousand, four hundred twenty-eight".