2309436 has 18 divisors (see below), whose sum is σ = 5837832. Its totient is φ = 769800.

The previous prime is 2309413. The next prime is 2309441. The reversal of 2309436 is 6349032.

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

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between even and odd.

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, 32040 + ... + 32111.

It is an arithmetic number, because the mean of its divisors is an integer number (324324).

2^2309436 is an apocalyptic number.

It is an amenable number.

2309436 is an abundant number, since it is smaller than the sum of its proper divisors (3528396).

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

2309436 is a wasteful number, since it uses less digits than its factorization.

2309436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64161 (or 64156 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 2309436 is about 1519.6828616524. The cubic root of 2309436 is about 132.1808814988.

The spelling of 2309436 in words is "two million, three hundred nine thousand, four hundred thirty-six".