1144834872 has 32 divisors (see below), whose sum is σ = 2863259280. Its totient is φ = 381455360.

The previous prime is 1144834811. The next prime is 1144834877. The reversal of 1144834872 is 2784384411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144834877) 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, 60328 + ... + 77000.

Almost surely, 2^1144834872 is an apocalyptic number.

1144834872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1144834872 is an abundant number, since it is smaller than the sum of its proper divisors (1718424408).

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

1144834872 is a wasteful number, since it uses less digits than its factorization.

1144834872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19543 (or 19539 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The square root of 1144834872 is about 33835.4085537621. The cubic root of 1144834872 is about 1046.1186625589.

The spelling of 1144834872 in words is "one billion, one hundred forty-four million, eight hundred thirty-four thousand, eight hundred seventy-two".