4455648 has 84 divisors (see below), whose sum is σ = 13220928. Its totient is φ = 1477440.

The previous prime is 4455641. The next prime is 4455667. The reversal of 4455648 is 8465544.

4455648 is a `hidden beast` number, since 4 + 4 + 5 + 5 + 648 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4455641) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 23233 + ... + 23423.

It is an arithmetic number, because the mean of its divisors is an integer number (157392).

Almost surely, 2^4455648 is an apocalyptic number.

4455648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4455648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6610464).

4455648 is an abundant number, since it is smaller than the sum of its proper divisors (8765280).

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

4455648 is an equidigital number, since it uses as much as digits as its factorization.

4455648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 196 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 4455648 is about 2110.8405908547. The cubic root of 4455648 is about 164.5521740866.

The spelling of 4455648 in words is "four million, four hundred fifty-five thousand, six hundred forty-eight".