740446 has 8 divisors (see below), whose sum is σ = 1269360. Its totient is φ = 317328.

The previous prime is 740429. The next prime is 740461. The reversal of 740446 is 644047.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 740446.

It is a congruent number.

It is an unprimeable number.

740446 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, 26431 + ... + 26458.

It is an arithmetic number, because the mean of its divisors is an integer number (158670).

2⁷⁴⁰⁴⁴⁶ is an apocalyptic number.

740446 is a deficient number, since it is larger than the sum of its proper divisors (528914).

740446 is a wasteful number, since it uses less digits than its factorization.

740446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52898.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 740446 is about 860.4917198904. The cubic root of 740446 is about 90.4685848859.

The spelling of 740446 in words is "seven hundred forty thousand, four hundred forty-six".