3240456 has 16 divisors (see below), whose sum is σ = 8101200. Its totient is φ = 1080144.

The previous prime is 3240451. The next prime is 3240467. The reversal of 3240456 is 6540423.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 135019 = 3240456 / (3 + 2 + 4 + 0 + 4 + 5 + 6).

It is a d-powerful number, because it can be written as 3 + 2²¹ + 4⁷ + 0 + 4¹⁰ + 5⁷ + 6³ .

It is not an unprimeable number, because it can be changed into a prime (3240451) 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, 67486 + ... + 67533.

It is an arithmetic number, because the mean of its divisors is an integer number (506325).

Almost surely, 2^3240456 is an apocalyptic number.

3240456 is the 1139-th centered pentagonal number.

It is an amenable number.

3240456 is an abundant number, since it is smaller than the sum of its proper divisors (4860744).

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

3240456 is a wasteful number, since it uses less digits than its factorization.

3240456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135028 (or 135024 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 3240456 is about 1800.1266622102. The cubic root of 3240456 is about 147.9796660645.

Adding to 3240456 its reverse (6540423), we get a palindrome (9780879).

The spelling of 3240456 in words is "three million, two hundred forty thousand, four hundred fifty-six".