4012636 has 18 divisors (see below), whose sum is σ = 7158200. Its totient is φ = 1968120.

The previous prime is 4012633. The next prime is 4012639. The reversal of 4012636 is 6362104.

It is an interprime number because it is at equal distance from previous prime (4012633) and next prime (4012639).

It is a super-2 number, since 2×4012636² = 32202495336992, which contains 22 as substring.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012633) 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 5 ways as a sum of consecutive naturals, for example, 20065 + ... + 20263.

Almost surely, 2^4012636 is an apocalyptic number.

It is an amenable number.

4012636 is a deficient number, since it is larger than the sum of its proper divisors (3145564).

4012636 is a wasteful number, since it uses less digits than its factorization.

4012636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 4012636 is about 2003.1565091126. The cubic root of 4012636 is about 158.9070828234.

The spelling of 4012636 in words is "four million, twelve thousand, six hundred thirty-six".