1242448 has 40 divisors (see below), whose sum is σ = 2613920. Its totient is φ = 570240.

The previous prime is 1242421. The next prime is 1242457. The reversal of 1242448 is 8442421.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18511 + ... + 18577.

It is an arithmetic number, because the mean of its divisors is an integer number (65348).

2^1242448 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 1242448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306960).

1242448 is an abundant number, since it is smaller than the sum of its proper divisors (1371472).

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

1242448 is a wasteful number, since it uses less digits than its factorization.

1242448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 149 counting only the distinct ones).

The product of its digits is 2048, while the sum is 25.

The square root of 1242448 is about 1114.6515150485. The cubic root of 1242448 is about 107.5043589363.

Adding to 1242448 its reverse (8442421), we get a palindrome (9684869).

The spelling of 1242448 in words is "one million, two hundred forty-two thousand, four hundred forty-eight".