742628 has 24 divisors (see below), whose sum is σ = 1405152. Its totient is φ = 342144.

The previous prime is 742619. The next prime is 742657. The reversal of 742628 is 826247.

742628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 742628.

It is an unprimeable number.

742628 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, 4475 + ... + 4637.

It is an arithmetic number, because the mean of its divisors is an integer number (58548).

2⁷⁴²⁶²⁸ is an apocalyptic number.

It is an amenable number.

742628 is a deficient number, since it is larger than the sum of its proper divisors (662524).

742628 is a wasteful number, since it uses less digits than its factorization.

742628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 249 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 742628 is about 861.7586669132. The cubic root of 742628 is about 90.5573641993.

The spelling of 742628 in words is "seven hundred forty-two thousand, six hundred twenty-eight".