622340253 has 12 divisors (see below), whose sum is σ = 932230208. Its totient is φ = 414893340.

The previous prime is 622340237. The next prime is 622340291. The reversal of 622340253 is 352043226.

622340253 is a `hidden beast` number, since 622 + 34 + 0 + 2 + 5 + 3 = 666.

It is not a de Polignac number, because 622340253 - 2⁴ = 622340237 is a prime.

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 (622340753) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1280293 + ... + 1280778.

Almost surely, 2^622340253 is an apocalyptic number.

It is an amenable number.

622340253 is a deficient number, since it is larger than the sum of its proper divisors (309889955).

622340253 is an equidigital number, since it uses as much as digits as its factorization.

622340253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561086 (or 2561074 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 622340253 is about 24946.7483452253. The cubic root of 622340253 is about 853.7734212531.

Adding to 622340253 its reverse (352043226), we get a palindrome (974383479).

The spelling of 622340253 in words is "six hundred twenty-two million, three hundred forty thousand, two hundred fifty-three".