422203431 has 16 divisors (see below), whose sum is σ = 627147360. Its totient is φ = 250857600.

The previous prime is 422203393. The next prime is 422203471. The reversal of 422203431 is 134302224.

It is not a de Polignac number, because 422203431 - 2⁶ = 422203367 is a prime.

It is a super-2 number, since 2×422203431² = 356511474296343522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 422203398 and 422203407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422203471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185520 + ... + 187781.

It is an arithmetic number, because the mean of its divisors is an integer number (39196710).

Almost surely, 2^422203431 is an apocalyptic number.

422203431 is a deficient number, since it is larger than the sum of its proper divisors (204943929).

422203431 is a wasteful number, since it uses less digits than its factorization.

422203431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373346.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 422203431 is about 20547.5894206595. The cubic root of 422203431 is about 750.1945752940.

Adding to 422203431 its reverse (134302224), we get a palindrome (556505655).

The spelling of 422203431 in words is "four hundred twenty-two million, two hundred three thousand, four hundred thirty-one".