622140 has 24 divisors (see below), whose sum is σ = 1742160. Its totient is φ = 165888.

The previous prime is 622133. The next prime is 622151. The reversal of 622140 is 41226.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 622140.

It is an unprimeable number.

622140 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5125 + ... + 5244.

It is an arithmetic number, because the mean of its divisors is an integer number (72590).

2⁶²²¹⁴⁰ is an apocalyptic number.

622140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

622140 is an abundant number, since it is smaller than the sum of its proper divisors (1120020).

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

622140 is a wasteful number, since it uses less digits than its factorization.

622140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10381 (or 10379 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 622140 is about 788.7585181790. The cubic root of 622140 is about 85.3681837360.

Adding to 622140 its reverse (41226), we get a palindrome (663366).

The spelling of 622140 in words is "six hundred twenty-two thousand, one hundred forty".