422440353 has 10 divisors (see below), whose sum is σ = 631052994. Its totient is φ = 281626848.

The previous prime is 422440349. The next prime is 422440363. The reversal of 422440353 is 353044224.

It can be written as a sum of positive squares in only one way, i.e., 342731169 + 79709184 = 18513^2 + 8928^2 .

It is not a de Polignac number, because 422440353 - 2² = 422440349 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (422440313) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2607576 + ... + 2607737.

Almost surely, 2^422440353 is an apocalyptic number.

It is an amenable number.

422440353 is a deficient number, since it is larger than the sum of its proper divisors (208612641).

422440353 is an equidigital number, since it uses as much as digits as its factorization.

422440353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5215325 (or 5215316 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 422440353 is about 20553.3538139156. The cubic root of 422440353 is about 750.3348744565.

Adding to 422440353 its reverse (353044224), we get a palindrome (775484577).

The spelling of 422440353 in words is "four hundred twenty-two million, four hundred forty thousand, three hundred fifty-three".