4611440 has 40 divisors (see below), whose sum is σ = 10914480. Its totient is φ = 1811456.

The previous prime is 4611419. The next prime is 4611443. The reversal of 4611440 is 441164.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4611443) 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 7 ways as a sum of consecutive naturals, for example, 4232 + ... + 5208.

It is an arithmetic number, because the mean of its divisors is an integer number (272862).

Almost surely, 2^4611440 is an apocalyptic number.

4611440 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 4611440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5457240).

4611440 is an abundant number, since it is smaller than the sum of its proper divisors (6303040).

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

4611440 is a wasteful number, since it uses less digits than its factorization.

4611440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4611440 is about 2147.4263666072. The cubic root of 4611440 is about 166.4481046202.

The spelling of 4611440 in words is "four million, six hundred eleven thousand, four hundred forty".