6494436 has 36 divisors (see below), whose sum is σ = 17680572. Its totient is φ = 1998144.

The previous prime is 6494417. The next prime is 6494443. The reversal of 6494436 is 6344946.

6494436 is a `hidden beast` number, since 649 + 4 + 4 + 3 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 705600 + 5788836 = 840^2 + 2406^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 6494436.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6471 + ... + 7406.

It is an arithmetic number, because the mean of its divisors is an integer number (491127).

Almost surely, 2^6494436 is an apocalyptic number.

It is an amenable number.

6494436 is an abundant number, since it is smaller than the sum of its proper divisors (11186136).

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

6494436 is a wasteful number, since it uses less digits than its factorization.

6494436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13900 (or 13895 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 6494436 is about 2548.4183330058. The cubic root of 6494436 is about 186.5722921470.

It can be divided in two parts, 64944 and 36, that added together give a triangular number (64980 = T₃₆₀).

The spelling of 6494436 in words is "six million, four hundred ninety-four thousand, four hundred thirty-six".