445717828 has 24 divisors (see below), whose sum is σ = 814851072. Its totient is φ = 212925504.

The previous prime is 445717793. The next prime is 445717837. The reversal of 445717828 is 828717544.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97776 + ... + 102232.

It is an arithmetic number, because the mean of its divisors is an integer number (33952128).

Almost surely, 2^445717828 is an apocalyptic number.

It is an amenable number.

445717828 is a deficient number, since it is larger than the sum of its proper divisors (369133244).

445717828 is a wasteful number, since it uses less digits than its factorization.

445717828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5571 (or 5569 counting only the distinct ones).

The product of its digits is 501760, while the sum is 46.

The square root of 445717828 is about 21112.0304092240. The cubic root of 445717828 is about 763.8709635606.

It can be divided in two parts, 4457 and 17828, that multiplied together give a square (79459396 = 8914²).

The spelling of 445717828 in words is "four hundred forty-five million, seven hundred seventeen thousand, eight hundred twenty-eight".