4501440 has 112 divisors (see below), whose sum is σ = 15910560. Its totient is φ = 1198080.

The previous prime is 4501429. The next prime is 4501451. The reversal of 4501440 is 441054.

It is an interprime number because it is at equal distance from previous prime (4501429) and next prime (4501451).

It is a hoax number, since the sum of its digits (18) 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 (18).

It is a congruent number.

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, 8380 + ... + 8900.

Almost surely, 2^4501440 is an apocalyptic number.

4501440 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 4501440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7955280).

4501440 is an abundant number, since it is smaller than the sum of its proper divisors (11409120).

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

4501440 is a wasteful number, since it uses less digits than its factorization.

4501440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 4501440 is about 2121.6597276661. The cubic root of 4501440 is about 165.1139708453.

Adding to 4501440 its reverse (441054), we get a palindrome (4942494).

It can be divided in two parts, 45014 and 40, that added together give a palindrome (45054).

The spelling of 4501440 in words is "four million, five hundred one thousand, four hundred forty".