2124380 has 12 divisors (see below), whose sum is σ = 4461240. Its totient is φ = 849744.

The previous prime is 2124377. The next prime is 2124401. The reversal of 2124380 is 834212.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 106219 = 2124380 / (2 + 1 + 2 + 4 + 3 + 8 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53090 + ... + 53129.

It is an arithmetic number, because the mean of its divisors is an integer number (371770).

2^2124380 is an apocalyptic number.

2124380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124380 is an abundant number, since it is smaller than the sum of its proper divisors (2336860).

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

2124380 is a wasteful number, since it uses less digits than its factorization.

2124380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106228 (or 106226 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2124380 is about 1457.5252999519. The cubic root of 2124380 is about 128.5515748297.

Adding to 2124380 its reverse (834212), we get a palindrome (2958592).

The spelling of 2124380 in words is "two million, one hundred twenty-four thousand, three hundred eighty".