1242430134 has 64 divisors (see below), whose sum is σ = 2829593088. Its totient is φ = 360339200.

The previous prime is 1242430129. The next prime is 1242430157. The reversal of 1242430134 is 4310342421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139087 + ... + 147749.

It is an arithmetic number, because the mean of its divisors is an integer number (44212392).

Almost surely, 2^1242430134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242430134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1414796544).

1242430134 is an abundant number, since it is smaller than the sum of its proper divisors (1587162954).

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

1242430134 is a wasteful number, since it uses less digits than its factorization.

1242430134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8773.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1242430134 is about 35248.1224180807. The cubic root of 1242430134 is about 1075.0384364119.

Adding to 1242430134 its reverse (4310342421), we get a palindrome (5552772555).

The spelling of 1242430134 in words is "one billion, two hundred forty-two million, four hundred thirty thousand, one hundred thirty-four".