744436 has 24 divisors (see below), whose sum is σ = 1624896. Its totient is φ = 289920.

The previous prime is 744431. The next prime is 744451. The reversal of 744436 is 634447.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 901 + ... + 1516.

It is an arithmetic number, because the mean of its divisors is an integer number (67704).

2⁷⁴⁴⁴³⁶ is an apocalyptic number.

It is an amenable number.

744436 is an abundant number, since it is smaller than the sum of its proper divisors (880460).

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

744436 is a wasteful number, since it uses less digits than its factorization.

744436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439 (or 2437 counting only the distinct ones).

The product of its digits is 8064, while the sum is 28.

The square root of 744436 is about 862.8070467955. The cubic root of 744436 is about 90.6307948732.

The spelling of 744436 in words is "seven hundred forty-four thousand, four hundred thirty-six".