42002522 has 8 divisors (see below), whose sum is σ = 63072756. Its totient is φ = 20978272.

The previous prime is 42002509. The next prime is 42002539. The reversal of 42002522 is 22520024.

It can be written as a sum of positive squares in 2 ways, for example, as 39075001 + 2927521 = 6251^2 + 1711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42002522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9113 + ... + 12924.

Almost surely, 2^42002522 is an apocalyptic number.

42002522 is a deficient number, since it is larger than the sum of its proper divisors (21070234).

42002522 is a wasteful number, since it uses less digits than its factorization.

42002522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22992.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 42002522 is about 6480.9352720113. The cubic root of 42002522 is about 347.6096219202.

Adding to 42002522 its reverse (22520024), we get a palindrome (64522546).

It can be divided in two parts, 42002 and 522, that added together give a palindrome (42524).

The spelling of 42002522 in words is "forty-two million, two thousand, five hundred twenty-two".