522266642 has 12 divisors (see below), whose sum is σ = 826802766. Its totient is φ = 247389120.

The previous prime is 522266621. The next prime is 522266659. The reversal of 522266642 is 246662225.

It can be written as a sum of positive squares in only one way, i.e., 325116961 + 197149681 = 18031^2 + 14041^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 360959 + ... + 362402.

Almost surely, 2^522266642 is an apocalyptic number.

522266642 is a deficient number, since it is larger than the sum of its proper divisors (304536124).

522266642 is a wasteful number, since it uses less digits than its factorization.

522266642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723401 (or 723382 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 522266642 is about 22853.1538742468. The cubic root of 522266642 is about 805.3118614727.

The spelling of 522266642 in words is "five hundred twenty-two million, two hundred sixty-six thousand, six hundred forty-two".