42210542 has 8 divisors (see below), whose sum is σ = 69071832. Its totient is φ = 19186600.

The previous prime is 42210529. The next prime is 42210551. The reversal of 42210542 is 24501224.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 959309 + ... + 959352.

It is an arithmetic number, because the mean of its divisors is an integer number (8633979).

Almost surely, 2^42210542 is an apocalyptic number.

42210542 is a deficient number, since it is larger than the sum of its proper divisors (26861290).

42210542 is a wasteful number, since it uses less digits than its factorization.

42210542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918674.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 42210542 is about 6496.9640602361. The cubic root of 42210542 is about 348.1825296464.

Adding to 42210542 its reverse (24501224), we get a palindrome (66711766).

The spelling of 42210542 in words is "forty-two million, two hundred ten thousand, five hundred forty-two".