2103390 has 24 divisors (see below), whose sum is σ = 5469048. Its totient is φ = 560880.

The previous prime is 2103389. The next prime is 2103403. The reversal of 2103390 is 933012.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11596 + ... + 11775.

It is an arithmetic number, because the mean of its divisors is an integer number (227877).

2^2103390 is an apocalyptic number.

2103390 is an abundant number, since it is smaller than the sum of its proper divisors (3365658).

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

2103390 is a wasteful number, since it uses less digits than its factorization.

2103390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23384 (or 23381 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 2103390 is about 1450.3068640808. The cubic root of 2103390 is about 128.1267868083.

It can be divided in two parts, 210 and 3390, that added together give a square (3600 = 60²).

The spelling of 2103390 in words is "two million, one hundred three thousand, three hundred ninety".