764244 has 72 divisors (see below), whose sum is σ = 2201472. Its totient is φ = 221760.

The previous prime is 764233. The next prime is 764249. The reversal of 764244 is 442467.

764244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

Its product of digits (5376) is a multiple of the sum of its prime divisors (112).

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764249) by changing a digit.

764244 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 23 ways as a sum of consecutive naturals, for example, 10729 + ... + 10799.

It is an arithmetic number, because the mean of its divisors is an integer number (30576).

2⁷⁶⁴²⁴⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 764244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1100736).

764244 is an abundant number, since it is smaller than the sum of its proper divisors (1437228).

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

764244 is a wasteful number, since it uses less digits than its factorization.

764244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 112 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 764244 is about 874.2105009664. The cubic root of 764244 is about 91.4276055516.

The spelling of 764244 in words is "seven hundred sixty-four thousand, two hundred forty-four".