2108390 has 8 divisors (see below), whose sum is σ = 3795120. Its totient is φ = 843352.

The previous prime is 2108389. The next prime is 2108401. The reversal of 2108390 is 938012.

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, 105410 + ... + 105429.

It is an arithmetic number, because the mean of its divisors is an integer number (474390).

2^2108390 is an apocalyptic number.

2108390 is a deficient number, since it is larger than the sum of its proper divisors (1686730).

2108390 is a wasteful number, since it uses less digits than its factorization.

2108390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210846.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2108390 is about 1452.0296140231. The cubic root of 2108390 is about 128.2282305068.

The spelling of 2108390 in words is "two million, one hundred eight thousand, three hundred ninety".