1144387832 has 32 divisors (see below), whose sum is σ = 2463283200. Its totient is φ = 488247264.

The previous prime is 1144387831. The next prime is 1144387889. The reversal of 1144387832 is 2387834411.

It is a self number, because there is not a number n which added to its sum of digits gives 1144387832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144387831) 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, 33332 + ... + 58307.

It is an arithmetic number, because the mean of its divisors is an integer number (76977600).

Almost surely, 2^1144387832 is an apocalyptic number.

It is an amenable number.

1144387832 is an abundant number, since it is smaller than the sum of its proper divisors (1318895368).

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

1144387832 is a wasteful number, since it uses less digits than its factorization.

1144387832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91875 (or 91871 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 1144387832 is about 33828.8018114742. The cubic root of 1144387832 is about 1045.9824805404.

The spelling of 1144387832 in words is "one billion, one hundred forty-four million, three hundred eighty-seven thousand, eight hundred thirty-two".