4455240 has 64 divisors (see below), whose sum is σ = 13512960. Its totient is φ = 1175040.

The previous prime is 4455239. The next prime is 4455259. The reversal of 4455240 is 425544.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 4455240.

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, 16305 + ... + 16575.

It is an arithmetic number, because the mean of its divisors is an integer number (211140).

Almost surely, 2^4455240 is an apocalyptic number.

4455240 is a gapful number since it is divisible by the number (40) 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 4455240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6756480).

4455240 is an abundant number, since it is smaller than the sum of its proper divisors (9057720).

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

4455240 is a wasteful number, since it uses less digits than its factorization.

4455240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 4455240 is about 2110.7439446792. The cubic root of 4455240 is about 164.5471512979.

The spelling of 4455240 in words is "four million, four hundred fifty-five thousand, two hundred forty".