2122390 has 8 divisors (see below), whose sum is σ = 3820320. Its totient is φ = 848952.

The previous prime is 2122381. The next prime is 2122409. The reversal of 2122390 is 932212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 106110 + ... + 106129.

It is an arithmetic number, because the mean of its divisors is an integer number (477540).

2^2122390 is an apocalyptic number.

2122390 is a deficient number, since it is larger than the sum of its proper divisors (1697930).

2122390 is a wasteful number, since it uses less digits than its factorization.

2122390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212246.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2122390 is about 1456.8424760419. The cubic root of 2122390 is about 128.5114223219.

The spelling of 2122390 in words is "two million, one hundred twenty-two thousand, three hundred ninety".