42243022 has 4 divisors (see below), whose sum is σ = 63364536. Its totient is φ = 21121510.

The previous prime is 42243017. The next prime is 42243029. The reversal of 42243022 is 22034224.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42243029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10560754 + ... + 10560757.

It is an arithmetic number, because the mean of its divisors is an integer number (15841134).

Almost surely, 2^42243022 is an apocalyptic number.

42243022 is a deficient number, since it is larger than the sum of its proper divisors (21121514).

42243022 is a wasteful number, since it uses less digits than its factorization.

42243022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21121513.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 42243022 is about 6499.4632086042. The cubic root of 42243022 is about 348.2718127860.

Adding to 42243022 its reverse (22034224), we get a palindrome (64277246).

The spelling of 42243022 in words is "forty-two million, two hundred forty-three thousand, twenty-two".