4012836 has 12 divisors (see below), whose sum is σ = 9363312. Its totient is φ = 1337608.

The previous prime is 4012829. The next prime is 4012837. The reversal of 4012836 is 6382104.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×4012836² = 32205705525792, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4012837) 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, 167190 + ... + 167213.

It is an arithmetic number, because the mean of its divisors is an integer number (780276).

Almost surely, 2^4012836 is an apocalyptic number.

It is an amenable number.

4012836 is an abundant number, since it is smaller than the sum of its proper divisors (5350476).

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

4012836 is a wasteful number, since it uses less digits than its factorization.

4012836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334410 (or 334408 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 4012836 is about 2003.2064297021. The cubic root of 4012836 is about 158.9097228908.

The spelling of 4012836 in words is "four million, twelve thousand, eight hundred thirty-six".