622538 has 16 divisors (see below), whose sum is σ = 1088640. Its totient is φ = 261456.

The previous prime is 622529. The next prime is 622547. The reversal of 622538 is 835226.

It is an interprime number because it is at equal distance from previous prime (622529) and next prime (622547).

It is a super-2 number, since 2×622538² = 775107122888, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 622538.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323 + ... + 1161.

It is an arithmetic number, because the mean of its divisors is an integer number (68040).

2⁶²²⁵³⁸ is an apocalyptic number.

622538 is a deficient number, since it is larger than the sum of its proper divisors (466102).

622538 is a wasteful number, since it uses less digits than its factorization.

622538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901.

The product of its digits is 2880, while the sum is 26.

The square root of 622538 is about 789.0107730570. The cubic root of 622538 is about 85.3863839773.

The spelling of 622538 in words is "six hundred twenty-two thousand, five hundred thirty-eight".