742626 has 12 divisors (see below), whose sum is σ = 1609062. Its totient is φ = 247536.

The previous prime is 742619. The next prime is 742657. The reversal of 742626 is 626247.

742626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 680625 + 62001 = 825^2 + 249^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 742626.

It is an unprimeable number.

742626 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 5 ways as a sum of consecutive naturals, for example, 20611 + ... + 20646.

2⁷⁴²⁶²⁶ is an apocalyptic number.

742626 is an abundant number, since it is smaller than the sum of its proper divisors (866436).

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

742626 is a wasteful number, since it uses less digits than its factorization.

742626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41265 (or 41262 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 742626 is about 861.7575064947. The cubic root of 742626 is about 90.5572829047.

The spelling of 742626 in words is "seven hundred forty-two thousand, six hundred twenty-six".