445563246420 has 240 divisors, whose sum is σ = 1475426568000. Its totient is φ = 112560539328.

The previous prime is 445563246407. The next prime is 445563246467. The reversal of 445563246420 is 24642365544.

It is a happy number.

445563246420 is a `hidden beast` number, since 4 + 4 + 5 + 5 + 632 + 4 + 6 + 4 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11091531 + ... + 11131629.

It is an arithmetic number, because the mean of its divisors is an integer number (6147610700).

Almost surely, 2^445563246420 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 445563246420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (737713284000).

445563246420 is an abundant number, since it is smaller than the sum of its proper divisors (1029863321580).

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

445563246420 is a wasteful number, since it uses less digits than its factorization.

445563246420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40177 (or 40128 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 45.

The spelling of 445563246420 in words is "four hundred forty-five billion, five hundred sixty-three million, two hundred forty-six thousand, four hundred twenty".