2645760 has 144 divisors (see below), whose sum is σ = 9271584. Its totient is φ = 638976.

The previous prime is 2645749. The next prime is 2645777. The reversal of 2645760 is 675462.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 49894 + ... + 49946.

It is an arithmetic number, because the mean of its divisors is an integer number (64386).

2^2645760 is an apocalyptic number.

2645760 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 2645760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4635792).

2645760 is an abundant number, since it is smaller than the sum of its proper divisors (6625824).

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

2645760 is a wasteful number, since it uses less digits than its factorization.

2645760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 2645760 is about 1626.5792326229. The cubic root of 2645760 is about 138.3089068337.

The spelling of 2645760 in words is "two million, six hundred forty-five thousand, seven hundred sixty".