3248640 has 160 divisors (see below), whose sum is σ = 11784960. Its totient is φ = 847872.

The previous prime is 3248621. The next prime is 3248653. The reversal of 3248640 is 468423.

3248640 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 (160).

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

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, 69097 + ... + 69143.

It is an arithmetic number, because the mean of its divisors is an integer number (73656).

Almost surely, 2^3248640 is an apocalyptic number.

3248640 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 3248640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5892480).

3248640 is an abundant number, since it is smaller than the sum of its proper divisors (8536320).

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

3248640 is an equidigital number, since it uses as much as digits as its factorization.

3248640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 3248640 is about 1802.3984021298. The cubic root of 3248640 is about 148.1041390266.

The spelling of 3248640 in words is "three million, two hundred forty-eight thousand, six hundred forty".