2309356 has 24 divisors (see below), whose sum is σ = 4691456. Its totient is φ = 974160.

The previous prime is 2309353. The next prime is 2309371. The reversal of 2309356 is 6539032.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (2309353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261 + ... + 2491.

2^2309356 is an apocalyptic number.

It is an amenable number.

2309356 is an abundant number, since it is smaller than the sum of its proper divisors (2382100).

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

2309356 is a wasteful number, since it uses less digits than its factorization.

2309356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1307 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 2309356 is about 1519.6565401432. The cubic root of 2309356 is about 132.1793552110.

The spelling of 2309356 in words is "two million, three hundred nine thousand, three hundred fifty-six".