1224748 has 48 divisors (see below), whose sum is σ = 2709504. Its totient is φ = 472320.

The previous prime is 1224739. The next prime is 1224763. The reversal of 1224748 is 8474221.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14715 + ... + 14797.

It is an arithmetic number, because the mean of its divisors is an integer number (56448).

2^1224748 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 1224748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1354752).

1224748 is an abundant number, since it is smaller than the sum of its proper divisors (1484756).

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

1224748 is a wasteful number, since it uses less digits than its factorization.

1224748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 140 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 1224748 is about 1106.6833332078. The cubic root of 1224748 is about 106.9914104963.

Adding to 1224748 its reverse (8474221), we get a palindrome (9698969).

The spelling of 1224748 in words is "one million, two hundred twenty-four thousand, seven hundred forty-eight".