1242498768 has 320 divisors, whose sum is σ = 4079738880. Its totient is φ = 317952000.

The previous prime is 1242498743. The next prime is 1242498779. The reversal of 1242498768 is 8678942421.

It is a self number, because there is not a number n which added to its sum of digits gives 1242498768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12301918 + ... + 12302018.

It is an arithmetic number, because the mean of its divisors is an integer number (12749184).

Almost surely, 2^1242498768 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 1242498768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2039869440).

1242498768 is an abundant number, since it is smaller than the sum of its proper divisors (2837240112).

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

1242498768 is a wasteful number, since it uses less digits than its factorization.

1242498768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 220 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 1242498768 is about 35249.0959884080. The cubic root of 1242498768 is about 1075.0582317113.

The spelling of 1242498768 in words is "one billion, two hundred forty-two million, four hundred ninety-eight thousand, seven hundred sixty-eight".