42216426 has 24 divisors (see below), whose sum is σ = 104536224. Its totient is φ = 12061800.

The previous prime is 42216407. The next prime is 42216439. The reversal of 42216426 is 62461224.

It is a self number, because there is not a number n which added to its sum of digits gives 42216426.

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, 167400 + ... + 167651.

It is an arithmetic number, because the mean of its divisors is an integer number (4355676).

Almost surely, 2^42216426 is an apocalyptic number.

42216426 is an abundant number, since it is smaller than the sum of its proper divisors (62319798).

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

42216426 is a wasteful number, since it uses less digits than its factorization.

42216426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335066 (or 335063 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 42216426 is about 6497.4168713420. The cubic root of 42216426 is about 348.1987073651.

The spelling of 42216426 in words is "forty-two million, two hundred sixteen thousand, four hundred twenty-six".