744146 has 8 divisors (see below), whose sum is σ = 1202124. Its totient is φ = 343440.

The previous prime is 744137. The next prime is 744179. The reversal of 744146 is 641447.

It can be written as a sum of positive squares in 2 ways, for example, as 546121 + 198025 = 739^2 + 445^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 28621 = 744146 / (7 + 4 + 4 + 1 + 4 + 6).

It is an unprimeable number.

744146 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 14285 + ... + 14336.

2⁷⁴⁴¹⁴⁶ is an apocalyptic number.

744146 is a deficient number, since it is larger than the sum of its proper divisors (457978).

744146 is a wasteful number, since it uses less digits than its factorization.

744146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28636.

The product of its digits is 2688, while the sum is 26.

The square root of 744146 is about 862.6389743108. The cubic root of 744146 is about 90.6190247349.

The spelling of 744146 in words is "seven hundred forty-four thousand, one hundred forty-six".