4512240 has 80 divisors (see below), whose sum is σ = 15549600. Its totient is φ = 1202688.

The previous prime is 4512229. The next prime is 4512241. The reversal of 4512240 is 422154.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4512241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1116 + ... + 3204.

It is an arithmetic number, because the mean of its divisors is an integer number (194370).

Almost surely, 2^4512240 is an apocalyptic number.

4512240 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 4512240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7774800).

4512240 is an abundant number, since it is smaller than the sum of its proper divisors (11037360).

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

4512240 is a wasteful number, since it uses less digits than its factorization.

4512240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111 (or 2099 counting only the distinct ones).

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

The square root of 4512240 is about 2124.2033800933. The cubic root of 4512240 is about 165.2459143015.

Adding to 4512240 its reverse (422154), we get a palindrome (4934394).

The spelling of 4512240 in words is "four million, five hundred twelve thousand, two hundred forty".