522620074 has 4 divisors (see below), whose sum is σ = 783930114. Its totient is φ = 261310036.

The previous prime is 522620039. The next prime is 522620081. The reversal of 522620074 is 470026225.

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., 336979449 + 185640625 = 18357^2 + 13625^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130655017 + ... + 130655020.

Almost surely, 2^522620074 is an apocalyptic number.

522620074 is a deficient number, since it is larger than the sum of its proper divisors (261310040).

522620074 is a wasteful number, since it uses less digits than its factorization.

522620074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261310039.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 522620074 is about 22860.8852409525. The cubic root of 522620074 is about 805.4934793023.

Adding to 522620074 its reverse (470026225), we get a palindrome (992646299).

The spelling of 522620074 in words is "five hundred twenty-two million, six hundred twenty thousand, seventy-four".