1242202104 has 384 divisors, whose sum is σ = 4302305280. Its totient is φ = 317952000.

The previous prime is 1242202069. The next prime is 1242202111. The reversal of 1242202104 is 4012022421.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8226429 + ... + 8226579.

It is an arithmetic number, because the mean of its divisors is an integer number (11203920).

Almost surely, 2^1242202104 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 1242202104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2151152640).

1242202104 is an abundant number, since it is smaller than the sum of its proper divisors (3060103176).

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

1242202104 is a wasteful number, since it uses less digits than its factorization.

1242202104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1242202104 is about 35244.8876292719. The cubic root of 1242202104 is about 1074.9726631592.

Adding to 1242202104 its reverse (4012022421), we get a palindrome (5254224525).

The spelling of 1242202104 in words is "one billion, two hundred forty-two million, two hundred two thousand, one hundred four".