445854864 has 160 divisors (see below), whose sum is σ = 1432797184. Its totient is φ = 116328960.

The previous prime is 445854863. The next prime is 445854889. The reversal of 445854864 is 468458544.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (445854863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 449409 + ... + 450399.

Almost surely, 2^445854864 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 445854864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (716398592).

445854864 is an abundant number, since it is smaller than the sum of its proper divisors (986942320).

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

445854864 is a wasteful number, since it uses less digits than its factorization.

445854864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125 (or 1119 counting only the distinct ones).

The product of its digits is 2457600, while the sum is 48.

The square root of 445854864 is about 21115.2756079574. The cubic root of 445854864 is about 763.9492396125.

The spelling of 445854864 in words is "four hundred forty-five million, eight hundred fifty-four thousand, eight hundred sixty-four".