445745 has 8 divisors (see below), whose sum is σ = 544320. Its totient is φ = 350320.

The previous prime is 445741. The next prime is 445747. The reversal of 445745 is 547544.

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

It is not a de Polignac number, because 445745 - 2² = 445741 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (445741) 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, 461 + ... + 1050.

It is an arithmetic number, because the mean of its divisors is an integer number (68040).

2⁴⁴⁵⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

445745 is a deficient number, since it is larger than the sum of its proper divisors (98575).

445745 is a wasteful number, since it uses less digits than its factorization.

445745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575.

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

The square root of 445745 is about 667.6413707972. The cubic root of 445745 is about 76.3886485698.

The spelling of 445745 in words is "four hundred forty-five thousand, seven hundred forty-five".