445496220 has 192 divisors, whose sum is σ = 1580826240. Its totient is φ = 103182336.

The previous prime is 445496213. The next prime is 445496273. The reversal of 445496220 is 22694544.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 117474 + ... + 121206.

It is an arithmetic number, because the mean of its divisors is an integer number (8233470).

Almost surely, 2^445496220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445496220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (790413120).

445496220 is an abundant number, since it is smaller than the sum of its proper divisors (1135330020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445496220 is a wasteful number, since it uses less digits than its factorization.

445496220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781 (or 3773 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 445496220 is about 21106.7813747146. The cubic root of 445496220 is about 763.7443453517.

The spelling of 445496220 in words is "four hundred forty-five million, four hundred ninety-six thousand, two hundred twenty".