2123040 has 48 divisors (see below), whose sum is σ = 6689088. Its totient is φ = 566016.

The previous prime is 2123027. The next prime is 2123047. The reversal of 2123040 is 403212.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (2123047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1732 + ... + 2691.

It is an arithmetic number, because the mean of its divisors is an integer number (139356).

2^2123040 is an apocalyptic number.

2123040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123040 is an abundant number, since it is smaller than the sum of its proper divisors (4566048).

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

2123040 is a wasteful number, since it uses less digits than its factorization.

2123040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441 (or 4433 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2123040 is about 1457.0655441675. The cubic root of 2123040 is about 128.5245402217.

Adding to 2123040 its reverse (403212), we get a palindrome (2526252).

The spelling of 2123040 in words is "two million, one hundred twenty-three thousand, forty".