42105026 has 16 divisors (see below), whose sum is σ = 66672960. Its totient is φ = 19887120.

The previous prime is 42104983. The next prime is 42105031. The reversal of 42105026 is 62050124.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42104989 and 42105007.

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, 13691 + ... + 16481.

It is an arithmetic number, because the mean of its divisors is an integer number (4167060).

Almost surely, 2^42105026 is an apocalyptic number.

42105026 is a deficient number, since it is larger than the sum of its proper divisors (24567934).

42105026 is a wasteful number, since it uses less digits than its factorization.

42105026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3209.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 42105026 is about 6488.8385709617. The cubic root of 42105026 is about 347.8921639279.

The spelling of 42105026 in words is "forty-two million, one hundred five thousand, twenty-six".