622458 has 16 divisors (see below), whose sum is σ = 1383360. Its totient is φ = 207468.

The previous prime is 622423. The next prime is 622477. The reversal of 622458 is 854226.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5710 + ... + 5817.

It is an arithmetic number, because the mean of its divisors is an integer number (86460).

2⁶²²⁴⁵⁸ is an apocalyptic number.

622458 is an abundant number, since it is smaller than the sum of its proper divisors (760902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622458 is a wasteful number, since it uses less digits than its factorization.

622458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11538 (or 11532 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 622458 is about 788.9600750355. The cubic root of 622458 is about 85.3827262604.

The spelling of 622458 in words is "six hundred twenty-two thousand, four hundred fifty-eight".