2124560 has 20 divisors (see below), whose sum is σ = 4939788. Its totient is φ = 849792.

The previous prime is 2124553. The next prime is 2124571. The reversal of 2124560 is 654212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 861184 + 1263376 = 928^2 + 1124^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13199 + ... + 13358.

2^2124560 is an apocalyptic number.

2124560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124560 is an abundant number, since it is smaller than the sum of its proper divisors (2815228).

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

2124560 is a wasteful number, since it uses less digits than its factorization.

2124560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26570 (or 26564 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2124560 is about 1457.5870471433. The cubic root of 2124560 is about 128.5552054780. Note that the first 3 decimals are identical.

Adding to 2124560 its reverse (654212), we get a palindrome (2778772).

The spelling of 2124560 in words is "two million, one hundred twenty-four thousand, five hundred sixty".