2124140 has 12 divisors (see below), whose sum is σ = 4460736. Its totient is φ = 849648.

The previous prime is 2124139. The next prime is 2124149. The reversal of 2124140 is 414212.

It is not an unprimeable number, because it can be changed into a prime (2124149) 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, 53084 + ... + 53123.

It is an arithmetic number, because the mean of its divisors is an integer number (371728).

2^2124140 is an apocalyptic number.

2124140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124140 is an abundant number, since it is smaller than the sum of its proper divisors (2336596).

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

2124140 is a wasteful number, since it uses less digits than its factorization.

2124140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106216 (or 106214 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2124140 is about 1457.4429662941. The cubic root of 2124140 is about 128.5467336463.

Adding to 2124140 its reverse (414212), we get a palindrome (2538352).

The spelling of 2124140 in words is "two million, one hundred twenty-four thousand, one hundred forty".