2238340 has 24 divisors (see below), whose sum is σ = 5062680. Its totient is φ = 826368.

The previous prime is 2238323. The next prime is 2238347. The reversal of 2238340 is 438322.

It can be written as a sum of positive squares in 4 ways, for example, as 324 + 2238016 = 18^2 + 1496^2 .

It is not an unprimeable number, because it can be changed into a prime (2238347) 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, 4045 + ... + 4564.

It is an arithmetic number, because the mean of its divisors is an integer number (210945).

2^2238340 is an apocalyptic number.

2238340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2238340 is an abundant number, since it is smaller than the sum of its proper divisors (2824340).

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

2238340 is a wasteful number, since it uses less digits than its factorization.

2238340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8631 (or 8629 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2238340 is about 1496.1082848511. The cubic root of 2238340 is about 130.8103231697.

The spelling of 2238340 in words is "two million, two hundred thirty-eight thousand, three hundred forty".