744545 has 8 divisors (see below), whose sum is σ = 914496. Its totient is φ = 581616.

The previous prime is 744539. The next prime is 744547. The reversal of 744545 is 545447.

744545 = 110² + 111² + ... + 152².

744545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 744545 - 2¹⁸ = 482401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (744547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1517 + ... + 1946.

It is an arithmetic number, because the mean of its divisors is an integer number (114312).

2⁷⁴⁴⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

744545 is a deficient number, since it is larger than the sum of its proper divisors (169951).

744545 is a wasteful number, since it uses less digits than its factorization.

744545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3511.

The product of its digits is 11200, while the sum is 29.

The square root of 744545 is about 862.8702104025. The cubic root of 744545 is about 90.6352180314.

The spelling of 744545 in words is "seven hundred forty-four thousand, five hundred forty-five".