1242323808 has 192 divisors, whose sum is σ = 3723148800. Its totient is φ = 359260160.

The previous prime is 1242323777. The next prime is 1242323813. The reversal of 1242323808 is 8083232421.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3460333 + ... + 3460691.

It is an arithmetic number, because the mean of its divisors is an integer number (19391400).

Almost surely, 2^1242323808 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 1242323808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1861574400).

1242323808 is an abundant number, since it is smaller than the sum of its proper divisors (2480824992).

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

1242323808 is a wasteful number, since it uses less digits than its factorization.

1242323808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 1242323808 is about 35246.6141352613. The cubic root of 1242323808 is about 1075.0077686116.

The spelling of 1242323808 in words is "one billion, two hundred forty-two million, three hundred twenty-three thousand, eight hundred eight".