2124390 has 32 divisors (see below), whose sum is σ = 5368320. Its totient is φ = 536544.

The previous prime is 2124377. The next prime is 2124401. The reversal of 2124390 is 934212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1294 + ... + 2433.

It is an arithmetic number, because the mean of its divisors is an integer number (167760).

2^2124390 is an apocalyptic number.

2124390 is an abundant number, since it is smaller than the sum of its proper divisors (3243930).

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

2124390 is a wasteful number, since it uses less digits than its factorization.

2124390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2124390 is about 1457.5287304201. The cubic root of 2124390 is about 128.5517765378.

The spelling of 2124390 in words is "two million, one hundred twenty-four thousand, three hundred ninety".