4455540 has 96 divisors (see below), whose sum is σ = 14300160. Its totient is φ = 1150848.

The previous prime is 4455533. The next prime is 4455559. The reversal of 4455540 is 455544.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19869 + ... + 20091.

It is an arithmetic number, because the mean of its divisors is an integer number (148960).

Almost surely, 2^4455540 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 4455540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7150080).

4455540 is an abundant number, since it is smaller than the sum of its proper divisors (9844620).

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

4455540 is a wasteful number, since it uses less digits than its factorization.

4455540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 270 counting only the distinct ones).

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

The square root of 4455540 is about 2110.8150084742. The cubic root of 4455540 is about 164.5508445547.

The spelling of 4455540 in words is "four million, four hundred fifty-five thousand, five hundred forty".