1338944 has 14 divisors (see below), whose sum is σ = 2657094. Its totient is φ = 669440.

The previous prime is 1338941. The next prime is 1338979. The reversal of 1338944 is 4498331.

It can be written as a sum of positive squares in only one way, i.e., 1236544 + 102400 = 1112^2 + 320^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1338944.

It is not an unprimeable number, because it can be changed into a prime (1338941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10397 + ... + 10524.

2^1338944 is an apocalyptic number.

It is an amenable number.

1338944 is a deficient number, since it is larger than the sum of its proper divisors (1318150).

1338944 is an equidigital number, since it uses as much as digits as its factorization.

1338944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20933 (or 20923 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 1338944 is about 1157.1274778519. The cubic root of 1338944 is about 110.2184090291.

The spelling of 1338944 in words is "one million, three hundred thirty-eight thousand, nine hundred forty-four".