3488640 has 128 divisors (see below), whose sum is σ = 11750400. Its totient is φ = 878592.

The previous prime is 3488629. The next prime is 3488657. The reversal of 3488640 is 468843.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44121 + ... + 44199.

It is an arithmetic number, because the mean of its divisors is an integer number (91800).

Almost surely, 2^3488640 is an apocalyptic number.

3488640 is a gapful number since it is divisible by the number (30) 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 3488640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5875200).

3488640 is an abundant number, since it is smaller than the sum of its proper divisors (8261760).

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

3488640 is a wasteful number, since it uses less digits than its factorization.

3488640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 3488640 is about 1867.7901381044. The cubic root of 3488640 is about 151.6650055501.

The spelling of 3488640 in words is "three million, four hundred eighty-eight thousand, six hundred forty".