2103620 has 24 divisors (see below), whose sum is σ = 4463424. Its totient is φ = 832736.

The previous prime is 2103617. The next prime is 2103653. The reversal of 2103620 is 263012.

It is a junction number, because it is equal to n+sod(n) for n = 2103595 and 2103604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1649 + ... + 2631.

It is an arithmetic number, because the mean of its divisors is an integer number (185976).

2^2103620 is an apocalyptic number.

2103620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103620 is an abundant number, since it is smaller than the sum of its proper divisors (2359804).

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

2103620 is a wasteful number, since it uses less digits than its factorization.

2103620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2103620 is about 1450.3861554772. The cubic root of 2103620 is about 128.1314567438.

Adding to 2103620 its reverse (263012), we get a palindrome (2366632).

The spelling of 2103620 in words is "two million, one hundred three thousand, six hundred twenty".