42245822 has 4 divisors (see below), whose sum is σ = 63368736. Its totient is φ = 21122910.

The previous prime is 42245813. The next prime is 42245843. The reversal of 42245822 is 22854224.

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, 10561454 + ... + 10561457.

It is an arithmetic number, because the mean of its divisors is an integer number (15842184).

Almost surely, 2^42245822 is an apocalyptic number.

42245822 is a deficient number, since it is larger than the sum of its proper divisors (21122914).

42245822 is a wasteful number, since it uses less digits than its factorization.

42245822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21122913.

The product of its digits is 10240, while the sum is 29.

The square root of 42245822 is about 6499.6786074390. The cubic root of 42245822 is about 348.2795074654.

The spelling of 42245822 in words is "forty-two million, two hundred forty-five thousand, eight hundred twenty-two".