2145760 has 24 divisors (see below), whose sum is σ = 5069736. Its totient is φ = 858240.

The previous prime is 2145721. The next prime is 2145763. The reversal of 2145760 is 675412.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6546 + ... + 6865.

It is an arithmetic number, because the mean of its divisors is an integer number (211239).

2^2145760 is an apocalyptic number.

2145760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2145760 is an abundant number, since it is smaller than the sum of its proper divisors (2923976).

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

2145760 is a wasteful number, since it uses less digits than its factorization.

2145760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13426 (or 13418 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2145760 is about 1464.8412883313. The cubic root of 2145760 is about 128.9813886577.

The spelling of 2145760 in words is "two million, one hundred forty-five thousand, seven hundred sixty".