6540472 has 16 divisors (see below), whose sum is σ = 12549240. Its totient is φ = 3194016.

The previous prime is 6540467. The next prime is 6540493. The reversal of 6540472 is 2740456.

It is a self number, because there is not a number n which added to its sum of digits gives 6540472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9163 + ... + 9850.

Almost surely, 2^6540472 is an apocalyptic number.

It is an amenable number.

6540472 is a deficient number, since it is larger than the sum of its proper divisors (6008768).

6540472 is a wasteful number, since it uses less digits than its factorization.

6540472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19062 (or 19058 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 6540472 is about 2557.4346521466. The cubic root of 6540472 is about 187.0120956459.

The spelling of 6540472 in words is "six million, five hundred forty thousand, four hundred seventy-two".