42806422 has 4 divisors (see below), whose sum is σ = 64209636. Its totient is φ = 21403210.

The previous prime is 42806417. The next prime is 42806441. The reversal of 42806422 is 22460824.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10701604 + ... + 10701607.

It is an arithmetic number, because the mean of its divisors is an integer number (16052409).

Almost surely, 2^42806422 is an apocalyptic number.

42806422 is a deficient number, since it is larger than the sum of its proper divisors (21403214).

42806422 is a wasteful number, since it uses less digits than its factorization.

42806422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21403213.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 42806422 is about 6542.6616907800. The cubic root of 42806422 is about 349.8132936171.

The spelling of 42806422 in words is "forty-two million, eight hundred six thousand, four hundred twenty-two".