42002554 has 16 divisors (see below), whose sum is σ = 71720640. Its totient is φ = 18261760.

The previous prime is 42002539. The next prime is 42002557. The reversal of 42002554 is 45520024.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (42002557) by changing a digit.

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, 40999 + ... + 42010.

It is an arithmetic number, because the mean of its divisors is an integer number (4482540).

Almost surely, 2^42002554 is an apocalyptic number.

42002554 is a deficient number, since it is larger than the sum of its proper divisors (29718086).

42002554 is a wasteful number, since it uses less digits than its factorization.

42002554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83045.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 42002554 is about 6480.9377407903. The cubic root of 42002554 is about 347.6097101967.

Adding to 42002554 its reverse (45520024), we get a palindrome (87522578).

The spelling of 42002554 in words is "forty-two million, two thousand, five hundred fifty-four".