2120390 has 8 divisors (see below), whose sum is σ = 3816720. Its totient is φ = 848152.

The previous prime is 2120387. The next prime is 2120411. The reversal of 2120390 is 930212.

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, 106010 + ... + 106029.

It is an arithmetic number, because the mean of its divisors is an integer number (477090).

2^2120390 is an apocalyptic number.

2120390 is a deficient number, since it is larger than the sum of its proper divisors (1696330).

2120390 is a wasteful number, since it uses less digits than its factorization.

2120390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212046.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2120390 is about 1456.1558982472. The cubic root of 2120390 is about 128.4710427465.

The spelling of 2120390 in words is "two million, one hundred twenty thousand, three hundred ninety".