744630 has 16 divisors (see below), whose sum is σ = 1787184. Its totient is φ = 198560.

The previous prime is 744607. The next prime is 744637. The reversal of 744630 is 36447.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 744630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744637) by changing a digit.

744630 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, 12381 + ... + 12440.

It is an arithmetic number, because the mean of its divisors is an integer number (111699).

2⁷⁴⁴⁶³⁰ is an apocalyptic number.

744630 is an abundant number, since it is smaller than the sum of its proper divisors (1042554).

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

744630 is a wasteful number, since it uses less digits than its factorization.

744630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24831.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 744630 is about 862.9194632177. The cubic root of 744630 is about 90.6386669836.

The spelling of 744630 in words is "seven hundred forty-four thousand, six hundred thirty".