42223045 has 4 divisors (see below), whose sum is σ = 50667660. Its totient is φ = 33778432.

The previous prime is 42223037. The next prime is 42223063. The reversal of 42223045 is 54032224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7918596 + 34304449 = 2814^2 + 5857^2 .

It is a cyclic number.

It is not a de Polignac number, because 42223045 - 2³ = 42223037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4222300 + ... + 4222309.

It is an arithmetic number, because the mean of its divisors is an integer number (12666915).

Almost surely, 2^42223045 is an apocalyptic number.

It is an amenable number.

42223045 is a deficient number, since it is larger than the sum of its proper divisors (8444615).

42223045 is an equidigital number, since it uses as much as digits as its factorization.

42223045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8444614.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 42223045 is about 6497.9262076450. The cubic root of 42223045 is about 348.2169041273.

Adding to 42223045 its reverse (54032224), we get a palindrome (96255269).

The spelling of 42223045 in words is "forty-two million, two hundred twenty-three thousand, forty-five".