626442 has 16 divisors (see below), whose sum is σ = 1264032. Its totient is φ = 206960.

The previous prime is 626393. The next prime is 626443. The reversal of 626442 is 244626.

It is a d-powerful number, because it can be written as 6⁷ + 2 + 4⁵ + 6⁷ + 4⁸ + 2³ .

It is not an unprimeable number, because it can be changed into a prime (626443) by changing a digit.

626442 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, 388 + ... + 1184.

It is an arithmetic number, because the mean of its divisors is an integer number (79002).

2⁶²⁶⁴⁴² is an apocalyptic number.

626442 is an abundant number, since it is smaller than the sum of its proper divisors (637590).

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

626442 is a wasteful number, since it uses less digits than its factorization.

626442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933.

The product of its digits is 2304, while the sum is 24.

The square root of 626442 is about 791.4808904831. The cubic root of 626442 is about 85.5645011042.

The spelling of 626442 in words is "six hundred twenty-six thousand, four hundred forty-two".