422910493 has 4 divisors (see below), whose sum is σ = 445168960. Its totient is φ = 400652028.

The previous prime is 422910473. The next prime is 422910503. The reversal of 422910493 is 394019224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 422910493 - 2¹³ = 422902301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422910443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11129205 + ... + 11129242.

It is an arithmetic number, because the mean of its divisors is an integer number (111292240).

Almost surely, 2^422910493 is an apocalyptic number.

It is an amenable number.

422910493 is a deficient number, since it is larger than the sum of its proper divisors (22258467).

422910493 is a wasteful number, since it uses less digits than its factorization.

422910493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22258466.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 422910493 is about 20564.7876964485. The cubic root of 422910493 is about 750.6131241167.

The spelling of 422910493 in words is "four hundred twenty-two million, nine hundred ten thousand, four hundred ninety-three".