1242134442 has 48 divisors (see below), whose sum is σ = 2762657352. Its totient is φ = 403107840.

The previous prime is 1242134419. The next prime is 1242134479. The reversal of 1242134442 is 2444312421.

1242134442 is a `hidden beast` number, since 1 + 2 + 4 + 213 + 4 + 442 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1238969601 + 3164841 = 35199^2 + 1779^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 424368 + ... + 427284.

Almost surely, 2^1242134442 is an apocalyptic number.

1242134442 is an abundant number, since it is smaller than the sum of its proper divisors (1520522910).

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

1242134442 is a wasteful number, since it uses less digits than its factorization.

1242134442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3543 (or 3540 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 1242134442 is about 35243.9277323059. The cubic root of 1242134442 is about 1074.9531451004.

Adding to 1242134442 its reverse (2444312421), we get a palindrome (3686446863).

The spelling of 1242134442 in words is "one billion, two hundred forty-two million, one hundred thirty-four thousand, four hundred forty-two".