422404311 has 8 divisors (see below), whose sum is σ = 643663744. Its totient is φ = 241373880.

The previous prime is 422404303. The next prime is 422404337. The reversal of 422404311 is 113404224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 422404311 - 2³ = 422404303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 20114491 = 422404311 / (4 + 2 + 2 + 4 + 0 + 4 + 3 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422404511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10057225 + ... + 10057266.

It is an arithmetic number, because the mean of its divisors is an integer number (80457968).

Almost surely, 2^422404311 is an apocalyptic number.

422404311 is a deficient number, since it is larger than the sum of its proper divisors (221259433).

422404311 is a wasteful number, since it uses less digits than its factorization.

422404311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20114501.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 422404311 is about 20552.4770040012. The cubic root of 422404311 is about 750.3135346875.

Adding to 422404311 its reverse (113404224), we get a palindrome (535808535).

The spelling of 422404311 in words is "four hundred twenty-two million, four hundred four thousand, three hundred eleven".