4609440 has 192 divisors, whose sum is σ = 17781120. Its totient is φ = 1105920.

The previous prime is 4609433. The next prime is 4609441. The reversal of 4609440 is 449064.

It is a super-2 number, since 2×4609440² = 42493874227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4609441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47472 + ... + 47568.

It is an arithmetic number, because the mean of its divisors is an integer number (92610).

Almost surely, 2^4609440 is an apocalyptic number.

4609440 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 4609440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8890560).

4609440 is an abundant number, since it is smaller than the sum of its proper divisors (13171680).

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

4609440 is a wasteful number, since it uses less digits than its factorization.

4609440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 4609440 is about 2146.9606423966. The cubic root of 4609440 is about 166.4240380707.

The spelling of 4609440 in words is "four million, six hundred nine thousand, four hundred forty".