1144939472 has 10 divisors (see below), whose sum is σ = 2218320258. Its totient is φ = 572469728.

The previous prime is 1144939447. The next prime is 1144939489. The reversal of 1144939472 is 2749394411.

It can be written as a sum of positive squares in only one way, i.e., 995023936 + 149915536 = 31544^2 + 12244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35779343 + ... + 35779374.

Almost surely, 2^1144939472 is an apocalyptic number.

It is an amenable number.

1144939472 is a deficient number, since it is larger than the sum of its proper divisors (1073380786).

1144939472 is an equidigital number, since it uses as much as digits as its factorization.

1144939472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71558725 (or 71558719 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 1144939472 is about 33836.9542364557. The cubic root of 1144939472 is about 1046.1505217910.

It can be divided in two parts, 1144939 and 472, that added together give a palindrome (1145411).

The spelling of 1144939472 in words is "one billion, one hundred forty-four million, nine hundred thirty-nine thousand, four hundred seventy-two".