1242021304 has 16 divisors (see below), whose sum is σ = 2336380200. Its totient is φ = 618986592.

The previous prime is 1242021299. The next prime is 1242021371. The reversal of 1242021304 is 4031202421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250399 + ... + 255310.

Almost surely, 2^1242021304 is an apocalyptic number.

It is an amenable number.

1242021304 is a deficient number, since it is larger than the sum of its proper divisors (1094358896).

1242021304 is a wasteful number, since it uses less digits than its factorization.

1242021304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506022 (or 506018 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1242021304 is about 35242.3226249349. The cubic root of 1242021304 is about 1074.9205072642.

Adding to 1242021304 its reverse (4031202421), we get a palindrome (5273223725).

The spelling of 1242021304 in words is "one billion, two hundred forty-two million, twenty-one thousand, three hundred four".