445495821 has 8 divisors (see below), whose sum is σ = 597778464. Its totient is φ = 295105200.

The previous prime is 445495801. The next prime is 445495837. The reversal of 445495821 is 128594544.

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

It is not a de Polignac number, because 445495821 - 2¹¹ = 445493773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445495801) 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, 472455 + ... + 473396.

It is an arithmetic number, because the mean of its divisors is an integer number (74722308).

Almost surely, 2^445495821 is an apocalyptic number.

It is an amenable number.

445495821 is a deficient number, since it is larger than the sum of its proper divisors (152282643).

445495821 is a wasteful number, since it uses less digits than its factorization.

445495821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946011.

The product of its digits is 230400, while the sum is 42.

The square root of 445495821 is about 21106.7719227740. The cubic root of 445495821 is about 763.7441173407.

The spelling of 445495821 in words is "four hundred forty-five million, four hundred ninety-five thousand, eight hundred twenty-one".