445554 has 32 divisors (see below), whose sum is σ = 1021440. Its totient is φ = 143856.

The previous prime is 445541. The next prime is 445567. The reversal of 445554 is 455544.

445554 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (445541) and next prime (445567).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1887 + ... + 2109.

It is an arithmetic number, because the mean of its divisors is an integer number (31920).

2⁴⁴⁵⁵⁵⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510720).

445554 is an abundant number, since it is smaller than the sum of its proper divisors (575886).

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

445554 is a wasteful number, since it uses less digits than its factorization.

445554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 265 counting only the distinct ones).

The product of its digits is 8000, while the sum is 27.

The square root of 445554 is about 667.4983146046. The cubic root of 445554 is about 76.3777362647.

It can be divided in two parts, 445 and 554, that added together give a palindrome (999).

The spelling of 445554 in words is "four hundred forty-five thousand, five hundred fifty-four".