422641505 has 96 divisors (see below), whose sum is σ = 663616800. Its totient is φ = 255467520.

The previous prime is 422641481. The next prime is 422641511. The reversal of 422641505 is 505146224.

It can be written as a sum of positive squares in 16 ways, for example, as 63425296 + 359216209 = 7964^2 + 18953^2 .

It is not a de Polignac number, because 422641505 - 2⁶ = 422641441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3877391 + ... + 3877499.

It is an arithmetic number, because the mean of its divisors is an integer number (6912675).

Almost surely, 2^422641505 is an apocalyptic number.

It is an amenable number.

422641505 is a deficient number, since it is larger than the sum of its proper divisors (240975295).

422641505 is a wasteful number, since it uses less digits than its factorization.

422641505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 422641505 is about 20558.2466421628. The cubic root of 422641505 is about 750.4539503685.

Adding to 422641505 its reverse (505146224), we get a palindrome (927787729).

The spelling of 422641505 in words is "four hundred twenty-two million, six hundred forty-one thousand, five hundred five".