42134434 has 8 divisors (see below), whose sum is σ = 63580608. Its totient is φ = 20940900.

The previous prime is 42134431. The next prime is 42134467. The reversal of 42134434 is 43443124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42134399 and 42134408.

It is not an unprimeable number, because it can be changed into a prime (42134431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62742 + ... + 63409.

It is an arithmetic number, because the mean of its divisors is an integer number (7947576).

Almost surely, 2^42134434 is an apocalyptic number.

42134434 is a deficient number, since it is larger than the sum of its proper divisors (21446174).

42134434 is a wasteful number, since it uses less digits than its factorization.

42134434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126320.

The product of its digits is 4608, while the sum is 25.

The square root of 42134434 is about 6491.1042203927. The cubic root of 42134434 is about 347.9731394691.

Adding to 42134434 its reverse (43443124), we get a palindrome (85577558).

The spelling of 42134434 in words is "forty-two million, one hundred thirty-four thousand, four hundred thirty-four".