1144648 has 16 divisors (see below), whose sum is σ = 2160000. Its totient is φ = 568656.

The previous prime is 1144643. The next prime is 1144657. The reversal of 1144648 is 8464411.

It is not an unprimeable number, because it can be changed into a prime (1144643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1233 + ... + 1951.

It is an arithmetic number, because the mean of its divisors is an integer number (135000).

2^1144648 is an apocalyptic number.

It is an amenable number.

1144648 is a deficient number, since it is larger than the sum of its proper divisors (1015352).

1144648 is a wasteful number, since it uses less digits than its factorization.

1144648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924 (or 920 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 1144648 is about 1069.8822365102. The cubic root of 1144648 is about 104.6061739961.

The spelling of 1144648 in words is "one million, one hundred forty-four thousand, six hundred forty-eight".