1244928 has 36 divisors (see below), whose sum is σ = 3315368. Its totient is φ = 414720.

The previous prime is 1244923. The next prime is 1244953. The reversal of 1244928 is 8294421.

It is a junction number, because it is equal to n+sod(n) for n = 1244895 and 1244904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244923) 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, 43 + ... + 1578.

2^1244928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1657684).

1244928 is an abundant number, since it is smaller than the sum of its proper divisors (2070440).

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

1244928 is an equidigital number, since it uses as much as digits as its factorization.

1244928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1626 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 1244928 is about 1115.7634157831. The cubic root of 1244928 is about 107.5758397592.

The spelling of 1244928 in words is "one million, two hundred forty-four thousand, nine hundred twenty-eight".