42242134 has 16 divisors (see below), whose sum is σ = 70258896. Its totient is φ = 18885600.

The previous prime is 42242087. The next prime is 42242141. The reversal of 42242134 is 43124224.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14397 + ... + 17080.

It is an arithmetic number, because the mean of its divisors is an integer number (4391181).

Almost surely, 2^42242134 is an apocalyptic number.

42242134 is a deficient number, since it is larger than the sum of its proper divisors (28016762).

42242134 is a wasteful number, since it uses less digits than its factorization.

42242134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31551.

The product of its digits is 1536, while the sum is 22.

The square root of 42242134 is about 6499.3948949114. The cubic root of 42242134 is about 348.2693724024.

Adding to 42242134 its reverse (43124224), we get a palindrome (85366358).

The spelling of 42242134 in words is "forty-two million, two hundred forty-two thousand, one hundred thirty-four".