1242244452 has 24 divisors (see below), whose sum is σ = 2909856096. Its totient is φ = 412469248.

The previous prime is 1242244447. The next prime is 1242244459. The reversal of 1242244452 is 2544422421.

It is not an unprimeable number, because it can be changed into a prime (1242244459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198318 + ... + 204485.

It is an arithmetic number, because the mean of its divisors is an integer number (121244004).

Almost surely, 2^1242244452 is an apocalyptic number.

1242244452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1242244452 is an abundant number, since it is smaller than the sum of its proper divisors (1667611644).

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

1242244452 is a wasteful number, since it uses less digits than its factorization.

1242244452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403067 (or 403065 counting only the distinct ones).

The product of its digits is 20480, while the sum is 30.

The square root of 1242244452 is about 35245.4883921333. The cubic root of 1242244452 is about 1074.9848786768.

Adding to 1242244452 its reverse (2544422421), we get a palindrome (3786666873).

The spelling of 1242244452 in words is "one billion, two hundred forty-two million, two hundred forty-four thousand, four hundred fifty-two".