1144236772 has 24 divisors (see below), whose sum is σ = 2408920640. Its totient is φ = 464577120.

The previous prime is 1144236767. The next prime is 1144236773. The reversal of 1144236772 is 2776324411.

It is not an unprimeable number, because it can be changed into a prime (1144236773) 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, 1074879 + ... + 1075942.

Almost surely, 2^1144236772 is an apocalyptic number.

It is an amenable number.

1144236772 is an abundant number, since it is smaller than the sum of its proper divisors (1264683868).

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

1144236772 is a wasteful number, since it uses less digits than its factorization.

1144236772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150851 (or 2150849 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The square root of 1144236772 is about 33826.5690249543. The cubic root of 1144236772 is about 1045.9364550405.

The spelling of 1144236772 in words is "one billion, one hundred forty-four million, two hundred thirty-six thousand, seven hundred seventy-two".