740449 has 4 divisors (see below), whose sum is σ = 779440. Its totient is φ = 701460.

The previous prime is 740429. The next prime is 740461. The reversal of 740449 is 944047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 740449 - 2⁷ = 740321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19467 + ... + 19504.

It is an arithmetic number, because the mean of its divisors is an integer number (194860).

2⁷⁴⁰⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

740449 is a deficient number, since it is larger than the sum of its proper divisors (38991).

740449 is a wasteful number, since it uses less digits than its factorization.

740449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38990.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 740449 is about 860.4934630780. The cubic root of 740449 is about 90.4687070669.

The spelling of 740449 in words is "seven hundred forty thousand, four hundred forty-nine".