744442 has 8 divisors (see below), whose sum is σ = 1120500. Its totient is φ = 370944.

The previous prime is 744431. The next prime is 744451. The reversal of 744442 is 244447.

It can be written as a sum of positive squares in 2 ways, for example, as 737881 + 6561 = 859^2 + 81^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484 + ... + 1312.

2⁷⁴⁴⁴⁴² is an apocalyptic number.

744442 is a deficient number, since it is larger than the sum of its proper divisors (376058).

744442 is a wasteful number, since it uses less digits than its factorization.

744442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280.

The product of its digits is 3584, while the sum is 25.

The square root of 744442 is about 862.8105238116. The cubic root of 744442 is about 90.6310383610.

Adding to 744442 its reverse (244447), we get a palindrome (988889).

The spelling of 744442 in words is "seven hundred forty-four thousand, four hundred forty-two", and thus it is an iban number.