2304540 has 144 divisors (see below), whose sum is σ = 8386560. Its totient is φ = 501120.

The previous prime is 2304527. The next prime is 2304541. The reversal of 2304540 is 454032.

It is a happy number.

It is a super-2 number, since 2×2304540² = 10621809223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2304541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39031 + ... + 39089.

It is an arithmetic number, because the mean of its divisors is an integer number (58240).

2^2304540 is an apocalyptic number.

2304540 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 2304540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4193280).

2304540 is an abundant number, since it is smaller than the sum of its proper divisors (6082020).

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

2304540 is a wasteful number, since it uses less digits than its factorization.

2304540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2304540 is about 1518.0711445779. The cubic root of 2304540 is about 132.0874076724.

Adding to 2304540 its reverse (454032), we get a palindrome (2758572).

The spelling of 2304540 in words is "two million, three hundred four thousand, five hundred forty".