622453491 has 48 divisors (see below), whose sum is σ = 1021657728. Its totient is φ = 375580800.

The previous prime is 622453483. The next prime is 622453523. The reversal of 622453491 is 194354226.

It is a happy number.

It is not a de Polignac number, because 622453491 - 2³ = 622453483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (622453441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 900456 + ... + 901146.

It is an arithmetic number, because the mean of its divisors is an integer number (21284536).

Almost surely, 2^622453491 is an apocalyptic number.

622453491 is a deficient number, since it is larger than the sum of its proper divisors (399204237).

622453491 is a wasteful number, since it uses less digits than its factorization.

622453491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054 (or 1042 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 622453491 is about 24949.0178363799. The cubic root of 622453491 is about 853.8252009299.

The spelling of 622453491 in words is "six hundred twenty-two million, four hundred fifty-three thousand, four hundred ninety-one".