1144022520 has 32 divisors (see below), whose sum is σ = 3432067920. Its totient is φ = 305072640.

The previous prime is 1144022501. The next prime is 1144022563. The reversal of 1144022520 is 252204411.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4766641 + ... + 4766880.

Almost surely, 2^1144022520 is an apocalyptic number.

1144022520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144022520 is an abundant number, since it is smaller than the sum of its proper divisors (2288045400).

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

1144022520 is a wasteful number, since it uses less digits than its factorization.

1144022520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9533535 (or 9533531 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1144022520 is about 33823.4019578161. The cubic root of 1144022520 is about 1045.8711690288.

Adding to 1144022520 its reverse (252204411), we get a palindrome (1396226931).

The spelling of 1144022520 in words is "one billion, one hundred forty-four million, twenty-two thousand, five hundred twenty".