42003434 has 16 divisors (see below), whose sum is σ = 70410816. Its totient is φ = 18626400.

The previous prime is 42003421. The next prime is 42003463. The reversal of 42003434 is 43430024.

It is a happy number.

42003434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22382 + ... + 24185.

It is an arithmetic number, because the mean of its divisors is an integer number (4400676).

Almost surely, 2^42003434 is an apocalyptic number.

42003434 is a deficient number, since it is larger than the sum of its proper divisors (28407382).

42003434 is a wasteful number, since it uses less digits than its factorization.

42003434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46621.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 42003434 is about 6481.0056318445. The cubic root of 42003434 is about 347.6121377824.

Adding to 42003434 its reverse (43430024), we get a palindrome (85433458).

The spelling of 42003434 in words is "forty-two million, three thousand, four hundred thirty-four".