1242243024 has 80 divisors (see below), whose sum is σ = 3505918464. Its totient is φ = 375894400.

The previous prime is 1242243011. The next prime is 1242243029. The reversal of 1242243024 is 4203422421.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1242242985 and 1242243003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242243029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511477 + ... + 513899.

Almost surely, 2^1242243024 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 1242243024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1752959232).

1242243024 is an abundant number, since it is smaller than the sum of its proper divisors (2263675440).

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

1242243024 is a wasteful number, since it uses less digits than its factorization.

1242243024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3416 (or 3410 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1242243024 is about 35245.4681342155. The cubic root of 1242243024 is about 1074.9844667667.

Adding to 1242243024 its reverse (4203422421), we get a palindrome (5445665445).

The spelling of 1242243024 in words is "one billion, two hundred forty-two million, two hundred forty-three thousand, twenty-four".