1144453340 has 12 divisors (see below), whose sum is σ = 2403352056. Its totient is φ = 457781328.

The previous prime is 1144453313. The next prime is 1144453351. The reversal of 1144453340 is 433544411.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28611314 + ... + 28611353.

It is an arithmetic number, because the mean of its divisors is an integer number (200279338).

Almost surely, 2^1144453340 is an apocalyptic number.

1144453340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144453340 is an abundant number, since it is smaller than the sum of its proper divisors (1258898716).

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

1144453340 is a wasteful number, since it uses less digits than its factorization.

1144453340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57222676 (or 57222674 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 1144453340 is about 33829.7700258219. The cubic root of 1144453340 is about 1046.0024384926.

Adding to 1144453340 its reverse (433544411), we get a palindrome (1577997751).

The spelling of 1144453340 in words is "one billion, one hundred forty-four million, four hundred fifty-three thousand, three hundred forty".