6452840 has 32 divisors (see below), whose sum is σ = 14591880. Its totient is φ = 2568192.

The previous prime is 6452839. The next prime is 6452851. The reversal of 6452840 is 482546.

It can be written as a sum of positive squares in 4 ways, for example, as 5866084 + 586756 = 2422^2 + 766^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13892 + ... + 14348.

Almost surely, 2^6452840 is an apocalyptic number.

It is an amenable number.

6452840 is an abundant number, since it is smaller than the sum of its proper divisors (8139040).

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

6452840 is a wasteful number, since it uses less digits than its factorization.

6452840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 817 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 6452840 is about 2540.2440827606. The cubic root of 6452840 is about 186.1731151212.

The spelling of 6452840 in words is "six million, four hundred fifty-two thousand, eight hundred forty".