2307906 has 32 divisors (see below), whose sum is σ = 5203200. Its totient is φ = 758160.

The previous prime is 2307887. The next prime is 2307913. The reversal of 2307906 is 6097032.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2307906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3996 + ... + 4536.

It is an arithmetic number, because the mean of its divisors is an integer number (162600).

2^2307906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2307906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2601600).

2307906 is an abundant number, since it is smaller than the sum of its proper divisors (2895294).

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

2307906 is a wasteful number, since it uses less digits than its factorization.

2307906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 2307906 is about 1519.1793837464. The cubic root of 2307906 is about 132.1516851315.

The spelling of 2307906 in words is "two million, three hundred seven thousand, nine hundred six".