1244745 has 24 divisors (see below), whose sum is σ = 2184000. Its totient is φ = 655776.

The previous prime is 1244741. The next prime is 1244753. The reversal of 1244745 is 5474421.

It is not a de Polignac number, because 1244745 - 2² = 1244741 is a prime.

It is a Curzon number.

1244745 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1244741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6156 + ... + 6354.

It is an arithmetic number, because the mean of its divisors is an integer number (91000).

2^1244745 is an apocalyptic number.

1244745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1244745 is a deficient number, since it is larger than the sum of its proper divisors (939255).

1244745 is a wasteful number, since it uses less digits than its factorization.

1244745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 346 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 1244745 is about 1115.6814061371. The cubic root of 1244745 is about 107.5705684119.

The spelling of 1244745 in words is "one million, two hundred forty-four thousand, seven hundred forty-five".