3018636 has 36 divisors (see below), whose sum is σ = 7744464. Its totient is φ = 991200.

The previous prime is 3018629. The next prime is 3018637. The reversal of 3018636 is 6368103.

3018636 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×3018636² = 18224326600992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3018637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1966 + ... + 3146.

It is an arithmetic number, because the mean of its divisors is an integer number (215124).

Almost surely, 2^3018636 is an apocalyptic number.

3018636 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3018636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3872232).

3018636 is an abundant number, since it is smaller than the sum of its proper divisors (4725828).

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

3018636 is a wasteful number, since it uses less digits than its factorization.

3018636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262 (or 1257 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 3018636 is about 1737.4222284753. The cubic root of 3018636 is about 144.5229825794.

The spelling of 3018636 in words is "three million, eighteen thousand, six hundred thirty-six".