626320 has 20 divisors (see below), whose sum is σ = 1456380. Its totient is φ = 250496.

The previous prime is 626317. The next prime is 626323. The reversal of 626320 is 23626.

It is an interprime number because it is at equal distance from previous prime (626317) and next prime (626323).

It can be written as a sum of positive squares in 2 ways, for example, as 147456 + 478864 = 384^2 + 692^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (626323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3835 + ... + 3994.

It is an arithmetic number, because the mean of its divisors is an integer number (72819).

2⁶²⁶³²⁰ is an apocalyptic number.

It is an amenable number.

626320 is an abundant number, since it is smaller than the sum of its proper divisors (830060).

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

626320 is a wasteful number, since it uses less digits than its factorization.

626320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7842 (or 7836 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 626320 is about 791.4038160130. The cubic root of 626320 is about 85.5589461622.

Adding to 626320 its reverse (23626), we get a palindrome (649946).

It can be divided in two parts, 626 and 320, that added together give a triangular number (946 = T₄₃).

The spelling of 626320 in words is "six hundred twenty-six thousand, three hundred twenty".