624620 has 12 divisors (see below), whose sum is σ = 1311744. Its totient is φ = 249840.

The previous prime is 624607. The next prime is 624643. The reversal of 624620 is 26426.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 31231 = 624620 / (6 + 2 + 4 + 6 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 624592 and 624601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15596 + ... + 15635.

It is an arithmetic number, because the mean of its divisors is an integer number (109312).

2⁶²⁴⁶²⁰ is an apocalyptic number.

It is an amenable number.

624620 is an abundant number, since it is smaller than the sum of its proper divisors (687124).

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

624620 is a wasteful number, since it uses less digits than its factorization.

624620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31240 (or 31238 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 624620 is about 790.3290453982. The cubic root of 624620 is about 85.4814660646.

The spelling of 624620 in words is "six hundred twenty-four thousand, six hundred twenty".