1242040108 has 12 divisors (see below), whose sum is σ = 2287968760. Its totient is φ = 588334752.

The previous prime is 1242040103. The next prime is 1242040109. The reversal of 1242040108 is 8010402421.

It is not an unprimeable number, because it can be changed into a prime (1242040103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8171241 + ... + 8171392.

Almost surely, 2^1242040108 is an apocalyptic number.

It is an amenable number.

1242040108 is a deficient number, since it is larger than the sum of its proper divisors (1045928652).

1242040108 is a wasteful number, since it uses less digits than its factorization.

1242040108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16342656 (or 16342654 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 1242040108 is about 35242.5894054339. The cubic root of 1242040108 is about 1074.9259319438.

Adding to 1242040108 its reverse (8010402421), we get a palindrome (9252442529).

The spelling of 1242040108 in words is "one billion, two hundred forty-two million, forty thousand, one hundred eight".