6540236 has 12 divisors (see below), whose sum is σ = 11607120. Its totient is φ = 3223920.

The previous prime is 6540217. The next prime is 6540239. The reversal of 6540236 is 6320456.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6540239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11231 + ... + 11798.

It is an arithmetic number, because the mean of its divisors is an integer number (967260).

Almost surely, 2^6540236 is an apocalyptic number.

It is an amenable number.

6540236 is a deficient number, since it is larger than the sum of its proper divisors (5066884).

6540236 is a wasteful number, since it uses less digits than its factorization.

6540236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23104 (or 23102 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 6540236 is about 2557.3885117440. The cubic root of 6540236 is about 187.0098462982.

It can be divided in two parts, 6540 and 236, that added together give a palindrome (6776).

The spelling of 6540236 in words is "six million, five hundred forty thousand, two hundred thirty-six".