434242042 has 16 divisors (see below), whose sum is σ = 712969992. Its totient is φ = 197133120.

The previous prime is 434242037. The next prime is 434242043. The reversal of 434242042 is 240242434.

It can be written as a sum of positive squares in 4 ways, for example, as 166952241 + 267289801 = 12921^2 + 16349^2 .

It is a junction number, because it is equal to n+sod(n) for n = 434241998 and 434242016.

It is not an unprimeable number, because it can be changed into a prime (434242043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135313 + ... + 138484.

Almost surely, 2^434242042 is an apocalyptic number.

434242042 is a deficient number, since it is larger than the sum of its proper divisors (278727950).

434242042 is a wasteful number, since it uses less digits than its factorization.

434242042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273873.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 434242042 is about 20838.4750401751. The cubic root of 434242042 is about 757.2581499082.

Adding to 434242042 its reverse (240242434), we get a palindrome (674484476).

The spelling of 434242042 in words is "four hundred thirty-four million, two hundred forty-two thousand, forty-two".