4461640 has 32 divisors (see below), whose sum is σ = 10186560. Its totient is φ = 1758400.

The previous prime is 4461623. The next prime is 4461641. The reversal of 4461640 is 461644.

It is not an unprimeable number, because it can be changed into a prime (4461641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2055 + ... + 3625.

It is an arithmetic number, because the mean of its divisors is an integer number (318330).

Almost surely, 2^4461640 is an apocalyptic number.

4461640 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 4461640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5093280).

4461640 is an abundant number, since it is smaller than the sum of its proper divisors (5724920).

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

4461640 is a wasteful number, since it uses less digits than its factorization.

4461640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 4461640 is about 2112.2594537604. The cubic root of 4461640 is about 164.6259048485.

The spelling of 4461640 in words is "four million, four hundred sixty-one thousand, six hundred forty".