42042554 has 16 divisors (see below), whose sum is σ = 66977280. Its totient is φ = 19736640.

The previous prime is 42042529. The next prime is 42042557. The reversal of 42042554 is 45524024.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42042557) 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, 602 + ... + 9189.

It is an arithmetic number, because the mean of its divisors is an integer number (4186080).

Almost surely, 2^42042554 is an apocalyptic number.

42042554 is a deficient number, since it is larger than the sum of its proper divisors (24934726).

42042554 is a wasteful number, since it uses less digits than its factorization.

42042554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9925.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 42042554 is about 6484.0229796015. The cubic root of 42042554 is about 347.7200207659.

Adding to 42042554 its reverse (45524024), we get a palindrome (87566578).

The spelling of 42042554 in words is "forty-two million, forty-two thousand, five hundred fifty-four".