42042435 has 16 divisors (see below), whose sum is σ = 67475616. Its totient is φ = 22353408.

The previous prime is 42042389. The next prime is 42042439. The reversal of 42042435 is 53424024.

It is not a de Polignac number, because 42042435 - 2¹⁰ = 42041411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42042439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897 + ... + 9213.

It is an arithmetic number, because the mean of its divisors is an integer number (4217226).

Almost surely, 2^42042435 is an apocalyptic number.

42042435 is a deficient number, since it is larger than the sum of its proper divisors (25433181).

42042435 is a wasteful number, since it uses less digits than its factorization.

42042435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8662.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 42042435 is about 6484.0138031932. The cubic root of 42042435 is about 347.7196926957.

Adding to 42042435 its reverse (53424024), we get a palindrome (95466459).

The spelling of 42042435 in words is "forty-two million, forty-two thousand, four hundred thirty-five".