42542002 has 8 divisors (see below), whose sum is σ = 63952812. Its totient is φ = 21224400.

The previous prime is 42541999. The next prime is 42542011. The reversal of 42542002 is 20024524.

It can be written as a sum of positive squares in 2 ways, for example, as 37564641 + 4977361 = 6129^2 + 2231^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 22149 + ... + 23992.

Almost surely, 2^42542002 is an apocalyptic number.

42542002 is a deficient number, since it is larger than the sum of its proper divisors (21410810).

42542002 is a wasteful number, since it uses less digits than its factorization.

42542002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46604.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 42542002 is about 6522.4230160271. The cubic root of 42542002 is about 349.0915269670.

Adding to 42542002 its reverse (20024524), we get a palindrome (62566526).

The spelling of 42542002 in words is "forty-two million, five hundred forty-two thousand, two".