6504452040 has 32 divisors (see below), whose sum is σ = 19513356480. Its totient is φ = 1734520512.

The previous prime is 6504451981. The next prime is 6504452051. The reversal of 6504452040 is 402544056.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 6504451989 and 6504452007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27101764 + ... + 27102003.

It is an arithmetic number, because the mean of its divisors is an integer number (609792390).

Almost surely, 2^6504452040 is an apocalyptic number.

6504452040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6504452040 is an abundant number, since it is smaller than the sum of its proper divisors (13008904440).

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

6504452040 is a wasteful number, since it uses less digits than its factorization.

6504452040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54203781 (or 54203777 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 6504452040 is about 80650.1831368038. The cubic root of 6504452040 is about 1866.6815654990.

Adding to 6504452040 its reverse (402544056), we get a palindrome (6906996096).

The spelling of 6504452040 in words is "six billion, five hundred four million, four hundred fifty-two thousand, forty".