42003542 has 16 divisors (see below), whose sum is σ = 74489760. Its totient is φ = 17380608.

The previous prime is 42003539. The next prime is 42003551. The reversal of 42003542 is 24530024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51323 + ... + 52134.

It is an arithmetic number, because the mean of its divisors is an integer number (4655610).

Almost surely, 2^42003542 is an apocalyptic number.

42003542 is a deficient number, since it is larger than the sum of its proper divisors (32486218).

42003542 is a wasteful number, since it uses less digits than its factorization.

42003542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103495.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 42003542 is about 6481.0139638794. The cubic root of 42003542 is about 347.6124357111.

Adding to 42003542 its reverse (24530024), we get a palindrome (66533566).

The spelling of 42003542 in words is "forty-two million, three thousand, five hundred forty-two".