626620 has 48 divisors (see below), whose sum is σ = 1481760. Its totient is φ = 221184.

The previous prime is 626617. The next prime is 626621. The reversal of 626620 is 26626.

626620 = T₃₄₉ + T₃₅₀ + ... + T₃₅₈.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 626591 and 626600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6412 + ... + 6508.

It is an arithmetic number, because the mean of its divisors is an integer number (30870).

2⁶²⁶⁶²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 626620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740880).

626620 is an abundant number, since it is smaller than the sum of its proper divisors (855140).

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

626620 is a wasteful number, since it uses less digits than its factorization.

626620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 626620 is about 791.5933299365. The cubic root of 626620 is about 85.5726045620.

The spelling of 626620 in words is "six hundred twenty-six thousand, six hundred twenty".