744556 has 12 divisors (see below), whose sum is σ = 1359792. Its totient is φ = 356048.

The previous prime is 744547. The next prime is 744559. The reversal of 744556 is 655447.

It is a happy number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (744559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3955 + ... + 4138.

It is an arithmetic number, because the mean of its divisors is an integer number (113316).

2⁷⁴⁴⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

744556 is a deficient number, since it is larger than the sum of its proper divisors (615236).

744556 is a wasteful number, since it uses less digits than its factorization.

744556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8120 (or 8118 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 744556 is about 862.8765844546. The cubic root of 744556 is about 90.6356643812.

The spelling of 744556 in words is "seven hundred forty-four thousand, five hundred fifty-six".