1242432234 has 12 divisors (see below), whose sum is σ = 2691936546. Its totient is φ = 414144072.

The previous prime is 1242432223. The next prime is 1242432281. The reversal of 1242432234 is 4322342421.

1242432234 is a `hidden beast` number, since 1 + 2 + 424 + 3 + 2 + 234 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1242351009 + 81225 = 35247^2 + 285^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1242432198 and 1242432207.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34511989 + ... + 34512024.

Almost surely, 2^1242432234 is an apocalyptic number.

1242432234 is an abundant number, since it is smaller than the sum of its proper divisors (1449504312).

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

1242432234 is a wasteful number, since it uses less digits than its factorization.

1242432234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69024021 (or 69024018 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 1242432234 is about 35248.1522068888. The cubic root of 1242432234 is about 1075.0390421011.

Adding to 1242432234 its reverse (4322342421), we get a palindrome (5564774655).

The spelling of 1242432234 in words is "one billion, two hundred forty-two million, four hundred thirty-two thousand, two hundred thirty-four".