2308240 has 80 divisors (see below), whose sum is σ = 6088896. Its totient is φ = 806400.

The previous prime is 2308237. The next prime is 2308247. The reversal of 2308240 is 428032.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (2308247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37810 + ... + 37870.

2^2308240 is an apocalyptic number.

2308240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2308240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3044448).

2308240 is an abundant number, since it is smaller than the sum of its proper divisors (3780656).

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

2308240 is a wasteful number, since it uses less digits than its factorization.

2308240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2308240 is about 1519.2893075382. The cubic root of 2308240 is about 132.1580598183.

The spelling of 2308240 in words is "two million, three hundred eight thousand, two hundred forty".