1242434075 has 12 divisors (see below), whose sum is σ = 1549848720. Its totient is φ = 987992160.

The previous prime is 1242434071. The next prime is 1242434099. The reversal of 1242434075 is 5704342421.

It is not a de Polignac number, because 1242434075 - 2² = 1242434071 is a prime.

It is a super-2 number, since 2×1242434075² = 3087284861442211250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1242434071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144620 + ... + 152969.

It is an arithmetic number, because the mean of its divisors is an integer number (129154060).

Almost surely, 2^1242434075 is an apocalyptic number.

1242434075 is a deficient number, since it is larger than the sum of its proper divisors (307414645).

1242434075 is a wasteful number, since it uses less digits than its factorization.

1242434075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297766 (or 297761 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 1242434075 is about 35248.1783217232. The cubic root of 1242434075 is about 1075.0395730880.

Adding to 1242434075 its reverse (5704342421), we get a palindrome (6946776496).

The spelling of 1242434075 in words is "one billion, two hundred forty-two million, four hundred thirty-four thousand, seventy-five".