42310522 has 4 divisors (see below), whose sum is σ = 63465786. Its totient is φ = 21155260.

The previous prime is 42310519. The next prime is 42310523. The reversal of 42310522 is 22501324.

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

It can be written as a sum of positive squares in only one way, i.e., 42107121 + 203401 = 6489^2 + 451^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42310522.

It is not an unprimeable number, because it can be changed into a prime (42310523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10577629 + ... + 10577632.

Almost surely, 2^42310522 is an apocalyptic number.

42310522 is a deficient number, since it is larger than the sum of its proper divisors (21155264).

42310522 is a wasteful number, since it uses less digits than its factorization.

42310522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21155263.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42310522 is about 6504.6538724209. The cubic root of 42310522 is about 348.4572149033.

Adding to 42310522 its reverse (22501324), we get a palindrome (64811846).

The spelling of 42310522 in words is "forty-two million, three hundred ten thousand, five hundred twenty-two".