422521244405 has 32 divisors (see below), whose sum is σ = 559450469088. Its totient is φ = 304348262400.

The previous prime is 422521244381. The next prime is 422521244419. The reversal of 422521244405 is 504442125224.

It can be written as a sum of positive squares in 16 ways, for example, as 251424022084 + 171097222321 = 501422^2 + 413639^2 .

It is not a de Polignac number, because 422521244405 - 2¹⁰ = 422521243381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18422345 + ... + 18445265.

It is an arithmetic number, because the mean of its divisors is an integer number (17482827159).

Almost surely, 2^422521244405 is an apocalyptic number.

It is an amenable number.

422521244405 is a deficient number, since it is larger than the sum of its proper divisors (136929224683).

422521244405 is a wasteful number, since it uses less digits than its factorization.

422521244405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29897.

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 422521244405 its reverse (504442125224), we get a palindrome (926963369629).

The spelling of 422521244405 in words is "four hundred twenty-two billion, five hundred twenty-one million, two hundred forty-four thousand, four hundred five".