422040807 has 24 divisors (see below), whose sum is σ = 633148400. Its totient is φ = 277848144.

The previous prime is 422040769. The next prime is 422040811. The reversal of 422040807 is 708040224.

It is not a de Polignac number, because 422040807 - 2⁷ = 422040679 is a prime.

It is a super-2 number, since 2×422040807² = 356236885546422498, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422040877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184869 + ... + 187137.

Almost surely, 2^422040807 is an apocalyptic number.

422040807 is a deficient number, since it is larger than the sum of its proper divisors (211107593).

422040807 is an equidigital number, since it uses as much as digits as its factorization.

422040807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444 (or 2355 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 422040807 is about 20543.6317870040. The cubic root of 422040807 is about 750.0982431305.

The spelling of 422040807 in words is "four hundred twenty-two million, forty thousand, eight hundred seven".