2309632 has 40 divisors (see below), whose sum is σ = 4984056. Its totient is φ = 1062912.

The previous prime is 2309609. The next prime is 2309633. The reversal of 2309632 is 2369032.

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

It is a junction number, because it is equal to n+sod(n) for n = 2309597 and 2309606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2309633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6483 + ... + 6829.

2^2309632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2309632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2492028).

2309632 is an abundant number, since it is smaller than the sum of its proper divisors (2674424).

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

2309632 is an equidigital number, since it uses as much as digits as its factorization.

2309632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 2309632 is about 1519.7473474232. The cubic root of 2309632 is about 132.1846207552.

The spelling of 2309632 in words is "two million, three hundred nine thousand, six hundred thirty-two".