4012112 has 20 divisors (see below), whose sum is σ = 8371860. Its totient is φ = 1851648.

The previous prime is 4012111. The next prime is 4012133. The reversal of 4012112 is 2112104.

It can be written as a sum of positive squares in 2 ways, for example, as 1628176 + 2383936 = 1276^2 + 1544^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4012093 and 4012102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012111) 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, 9437 + ... + 9852.

It is an arithmetic number, because the mean of its divisors is an integer number (418593).

Almost surely, 2^4012112 is an apocalyptic number.

It is an amenable number.

4012112 is an abundant number, since it is smaller than the sum of its proper divisors (4359748).

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

4012112 is a wasteful number, since it uses less digits than its factorization.

4012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19310 (or 19304 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 4012112 is about 2003.0257112678. The cubic root of 4012112 is about 158.9001654307.

Adding to 4012112 its reverse (2112104), we get a palindrome (6124216).

The spelling of 4012112 in words is "four million, twelve thousand, one hundred twelve".