2664560 has 40 divisors (see below), whose sum is σ = 6524880. Its totient is φ = 1009152.

The previous prime is 2664553. The next prime is 2664577. The reversal of 2664560 is 654662.

2664560 = 41² + 42² + ... + 200².

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644 + ... + 2396.

It is an arithmetic number, because the mean of its divisors is an integer number (163122).

2^2664560 is an apocalyptic number.

2664560 is a gapful number since it is divisible by the number (20) 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 2664560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3262440).

2664560 is an abundant number, since it is smaller than the sum of its proper divisors (3860320).

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

2664560 is a wasteful number, since it uses less digits than its factorization.

2664560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785 (or 1779 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2664560 is about 1632.3480021123. The cubic root of 2664560 is about 138.6357282226.

The spelling of 2664560 in words is "two million, six hundred sixty-four thousand, five hundred sixty".