42124042 has 8 divisors (see below), whose sum is σ = 63588996. Its totient is φ = 20927712.

The previous prime is 42124003. The next prime is 42124057. The reversal of 42124042 is 24042124.

It can be written as a sum of positive squares in 2 ways, for example, as 40844881 + 1279161 = 6391^2 + 1131^2 .

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, 66763 + ... + 67390.

Almost surely, 2^42124042 is an apocalyptic number.

42124042 is a deficient number, since it is larger than the sum of its proper divisors (21464954).

42124042 is a wasteful number, since it uses less digits than its factorization.

42124042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134312.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 42124042 is about 6490.3036908915. The cubic root of 42124042 is about 347.9445291864.

Adding to 42124042 its reverse (24042124), we get a palindrome (66166166).

The spelling of 42124042 in words is "forty-two million, one hundred twenty-four thousand, forty-two".