1244646 has 48 divisors (see below), whose sum is σ = 3027024. Its totient is φ = 381024.

The previous prime is 1244629. The next prime is 1244647. The reversal of 1244646 is 6464421.

1244646 is a `hidden beast` number, since 12 + 4 + 4 + 646 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244647) 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, 6220 + ... + 6416.

It is an arithmetic number, because the mean of its divisors is an integer number (63063).

2^1244646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1513512).

1244646 is an abundant number, since it is smaller than the sum of its proper divisors (1782378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244646 is a wasteful number, since it uses less digits than its factorization.

1244646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 215 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 1244646 is about 1115.6370377502. The cubic root of 1244646 is about 107.5677164841.

The spelling of 1244646 in words is "one million, two hundred forty-four thousand, six hundred forty-six".