42106442 has 8 divisors (see below), whose sum is σ = 72182496. Its totient is φ = 18045612.

The previous prime is 42106423. The next prime is 42106453. The reversal of 42106442 is 24460124.

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

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, 1503788 + ... + 1503815.

It is an arithmetic number, because the mean of its divisors is an integer number (9022812).

Almost surely, 2^42106442 is an apocalyptic number.

42106442 is a deficient number, since it is larger than the sum of its proper divisors (30076054).

42106442 is a wasteful number, since it uses less digits than its factorization.

42106442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007612.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 42106442 is about 6488.9476804795. The cubic root of 42106442 is about 347.8960637773.

Adding to 42106442 its reverse (24460124), we get a palindrome (66566566).

The spelling of 42106442 in words is "forty-two million, one hundred six thousand, four hundred forty-two".