422424637 has 4 divisors (see below), whose sum is σ = 423082240. Its totient is φ = 421767036.

The previous prime is 422424593. The next prime is 422424679. The reversal of 422424637 is 736424224.

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 a de Polignac number, because none of the positive numbers 2^k-422424637 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 (422424137) 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, 327837 + ... + 329122.

It is an arithmetic number, because the mean of its divisors is an integer number (105770560).

Almost surely, 2^422424637 is an apocalyptic number.

It is an amenable number.

422424637 is a deficient number, since it is larger than the sum of its proper divisors (657603).

422424637 is an equidigital number, since it uses as much as digits as its factorization.

422424637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657602.

The product of its digits is 64512, while the sum is 34.

The square root of 422424637 is about 20552.9714883274. The cubic root of 422424637 is about 750.3255694671.

The spelling of 422424637 in words is "four hundred twenty-two million, four hundred twenty-four thousand, six hundred thirty-seven".