1144442550 has 48 divisors (see below), whose sum is σ = 3005178192. Its totient is φ = 287232000.

The previous prime is 1144442521. The next prime is 1144442587. The reversal of 1144442550 is 552444411.

1144442550 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 221851 + ... + 226950.

It is an arithmetic number, because the mean of its divisors is an integer number (62607879).

Almost surely, 2^1144442550 is an apocalyptic number.

1144442550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1144442550 is an abundant number, since it is smaller than the sum of its proper divisors (1860735642).

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

1144442550 is a wasteful number, since it uses less digits than its factorization.

1144442550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448833 (or 448828 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 1144442550 is about 33829.6105505222. The cubic root of 1144442550 is about 1045.9991512167. Note that the first 3 decimals are identical.

Adding to 1144442550 its reverse (552444411), we get a palindrome (1696886961).

The spelling of 1144442550 in words is "one billion, one hundred forty-four million, four hundred forty-two thousand, five hundred fifty".