2104308 has 18 divisors (see below), whose sum is σ = 5319314. Its totient is φ = 701424.

The previous prime is 2104273. The next prime is 2104313. The reversal of 2104308 is 8034012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1205604 + 898704 = 1098^2 + 948^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2104308² = 8856224317728, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29191 + ... + 29262.

2^2104308 is an apocalyptic number.

It is an amenable number.

2104308 is an abundant number, since it is smaller than the sum of its proper divisors (3215006).

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

2104308 is a wasteful number, since it uses less digits than its factorization.

2104308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58463 (or 58458 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2104308 is about 1450.6233143032. The cubic root of 2104308 is about 128.1454239105.

Adding to 2104308 its sum of digits (18), we get a triangular number (2104326 = T₂₀₅₁).

The spelling of 2104308 in words is "two million, one hundred four thousand, three hundred eight".