42122826 has 24 divisors (see below), whose sum is σ = 93493764. Its totient is φ = 13698240.

The previous prime is 42122813. The next prime is 42122849. The reversal of 42122826 is 62822124.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 35105625 + 7017201 = 5925^2 + 2649^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42122826.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27801 + ... + 29276.

Almost surely, 2^42122826 is an apocalyptic number.

42122826 is an abundant number, since it is smaller than the sum of its proper divisors (51370938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42122826 is a wasteful number, since it uses less digits than its factorization.

42122826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57126 (or 57123 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 42122826 is about 6490.2100120104. The cubic root of 42122826 is about 347.9411811014.

It can be divided in two parts, 4 and 2122826, that added together give a triangular number (2122830 = T₂₀₆₀).

The spelling of 42122826 in words is "forty-two million, one hundred twenty-two thousand, eight hundred twenty-six".