4621440 has 128 divisors (see below), whose sum is σ = 15422400. Its totient is φ = 1175552.

The previous prime is 4621439. The next prime is 4621447. The reversal of 4621440 is 441264.

4621440 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (4621447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55639 + ... + 55721.

Almost surely, 2^4621440 is an apocalyptic number.

4621440 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 4621440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7711200).

4621440 is an abundant number, since it is smaller than the sum of its proper divisors (10800960).

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

4621440 is a wasteful number, since it uses less digits than its factorization.

4621440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4621440 is about 2149.7534742384. The cubic root of 4621440 is about 166.5683331056.

The spelling of 4621440 in words is "four million, six hundred twenty-one thousand, four hundred forty".