6498540 has 72 divisors (see below), whose sum is σ = 20005440. Its totient is φ = 1707264.

The previous prime is 6498521. The next prime is 6498553. The reversal of 6498540 is 458946.

6498540 is a `hidden beast` number, since 649 + 8 + 5 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6498495 and 6498504.

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 23 ways as a sum of consecutive naturals, for example, 13992 + ... + 14448.

Almost surely, 2^6498540 is an apocalyptic number.

6498540 is a gapful number since it is divisible by the number (60) 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 6498540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10002720).

6498540 is an abundant number, since it is smaller than the sum of its proper divisors (13506900).

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

6498540 is a wasteful number, since it uses less digits than its factorization.

6498540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 6498540 is about 2549.2234111588. The cubic root of 6498540 is about 186.6115838041.

It can be divided in two parts, 64985 and 40, that added together give a square (65025 = 255²).

The spelling of 6498540 in words is "six million, four hundred ninety-eight thousand, five hundred forty".