445652020 has 48 divisors (see below), whose sum is σ = 1023321600. Its totient is φ = 161678720.

The previous prime is 445651981. The next prime is 445652027. The reversal of 445652020 is 20256544.

It is a self number, because there is not a number n which added to its sum of digits gives 445652020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445652027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103266 + ... + 107494.

It is an arithmetic number, because the mean of its divisors is an integer number (21319200).

Almost surely, 2^445652020 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 445652020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511660800).

445652020 is an abundant number, since it is smaller than the sum of its proper divisors (577669580).

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

445652020 is a wasteful number, since it uses less digits than its factorization.

445652020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4728 (or 4726 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 445652020 is about 21110.4718090335. The cubic root of 445652020 is about 763.8333678058.

The spelling of 445652020 in words is "four hundred forty-five million, six hundred fifty-two thousand, twenty".