422805501 has 20 divisors (see below), whose sum is σ = 632944224. Its totient is φ = 281269800.

The previous prime is 422805463. The next prime is 422805511. The reversal of 422805501 is 105508224.

It is a happy number.

It is not a de Polignac number, because 422805501 - 2⁶ = 422805437 is a prime.

It is a super-2 number, since 2×422805501² = 357528983351722002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422805511) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34456 + ... + 45086.

Almost surely, 2^422805501 is an apocalyptic number.

It is an amenable number.

422805501 is a deficient number, since it is larger than the sum of its proper divisors (210138723).

422805501 is a wasteful number, since it uses less digits than its factorization.

422805501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11134 (or 11125 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 422805501 is about 20562.2348250379. The cubic root of 422805501 is about 750.5510030950.

The spelling of 422805501 in words is "four hundred twenty-two million, eight hundred five thousand, five hundred one".