8456540 has 12 divisors (see below), whose sum is σ = 17758776. Its totient is φ = 3382608.

The previous prime is 8456527. The next prime is 8456543. The reversal of 8456540 is 456548.

8456540 is nontrivially palindromic in base 11.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8456497 and 8456506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8456543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211394 + ... + 211433.

It is an arithmetic number, because the mean of its divisors is an integer number (1479898).

Almost surely, 2^8456540 is an apocalyptic number.

It is an amenable number.

8456540 is an abundant number, since it is smaller than the sum of its proper divisors (9302236).

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

8456540 is a wasteful number, since it uses less digits than its factorization.

8456540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422836 (or 422834 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 8456540 is about 2908.0130673709. The cubic root of 8456540 is about 203.7343395694.

The spelling of 8456540 in words is "eight million, four hundred fifty-six thousand, five hundred forty".