1299944 has 8 divisors (see below), whose sum is σ = 2437410. Its totient is φ = 649968.

The previous prime is 1299941. The next prime is 1299953. The reversal of 1299944 is 4499921.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1295044 + 4900 = 1138^2 + 70^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1299898 and 1299907.

It is not an unprimeable number, because it can be changed into a prime (1299941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81239 + ... + 81254.

2^1299944 is an apocalyptic number.

It is an amenable number.

1299944 is a deficient number, since it is larger than the sum of its proper divisors (1137466).

1299944 is a wasteful number, since it uses less digits than its factorization.

1299944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162499 (or 162495 counting only the distinct ones).

The product of its digits is 23328, while the sum is 38.

The square root of 1299944 is about 1140.1508672101. The cubic root of 1299944 is about 109.1377211554.

The spelling of 1299944 in words is "one million, two hundred ninety-nine thousand, nine hundred forty-four".