1244624 has 20 divisors (see below), whose sum is σ = 2437344. Its totient is φ = 615648.

The previous prime is 1244611. The next prime is 1244627. The reversal of 1244624 is 4264421.

It is a self number, because there is not a number n which added to its sum of digits gives 1244624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244627) 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, 1349 + ... + 2075.

2^1244624 is an apocalyptic number.

It is an amenable number.

1244624 is a deficient number, since it is larger than the sum of its proper divisors (1192720).

1244624 is a wasteful number, since it uses less digits than its factorization.

1244624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 836 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 1244624 is about 1115.6271778690. The cubic root of 1244624 is about 107.5670827018.

The spelling of 1244624 in words is "one million, two hundred forty-four thousand, six hundred twenty-four".