744606 has 16 divisors (see below), whose sum is σ = 1654800. Its totient is φ = 248184.

The previous prime is 744599. The next prime is 744607. The reversal of 744606 is 606447.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 744606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744607) by changing a digit.

744606 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, 6841 + ... + 6948.

It is an arithmetic number, because the mean of its divisors is an integer number (103425).

2⁷⁴⁴⁶⁰⁶ is an apocalyptic number.

744606 is an abundant number, since it is smaller than the sum of its proper divisors (910194).

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

744606 is a wasteful number, since it uses less digits than its factorization.

744606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13800 (or 13794 counting only the distinct ones).

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

The square root of 744606 is about 862.9055568253. The cubic root of 744606 is about 90.6376931884.

The spelling of 744606 in words is "seven hundred forty-four thousand, six hundred six".