6542478 has 16 divisors (see below), whose sum is σ = 14538960. Its totient is φ = 2180808.

The previous prime is 6542461. The next prime is 6542489. The reversal of 6542478 is 8742456.

6542478 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 6⁷ + 5⁹ + 4⁸ + 2 + 4¹¹ + 7⁵ + 8⁵ .

It is a Curzon number.

It is a congruent number.

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, 60525 + ... + 60632.

It is an arithmetic number, because the mean of its divisors is an integer number (908685).

Almost surely, 2^6542478 is an apocalyptic number.

6542478 is an abundant number, since it is smaller than the sum of its proper divisors (7996482).

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

6542478 is a wasteful number, since it uses less digits than its factorization.

6542478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121168 (or 121162 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 6542478 is about 2557.8268119636. The cubic root of 6542478 is about 187.0312129164.

The spelling of 6542478 in words is "six million, five hundred forty-two thousand, four hundred seventy-eight".