744426 has 12 divisors (see below), whose sum is σ = 1612962. Its totient is φ = 248136.

The previous prime is 744409. The next prime is 744431. The reversal of 744426 is 624447.

It can be written as a sum of positive squares in only one way, i.e., 585225 + 159201 = 765^2 + 399^2 .

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 744426.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 20661 + ... + 20696.

2⁷⁴⁴⁴²⁶ is an apocalyptic number.

744426 is an abundant number, since it is smaller than the sum of its proper divisors (868536).

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

744426 is a wasteful number, since it uses less digits than its factorization.

744426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41365 (or 41362 counting only the distinct ones).

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

The square root of 744426 is about 862.8012517376. The cubic root of 744426 is about 90.6303890573.

The spelling of 744426 in words is "seven hundred forty-four thousand, four hundred twenty-six".