4002112 has 14 divisors (see below), whose sum is σ = 7941818. Its totient is φ = 2001024.

The previous prime is 4002109. The next prime is 4002113. The reversal of 4002112 is 2112004.

It can be written as a sum of positive squares in only one way, i.e., 3748096 + 254016 = 1936^2 + 504^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31203 + ... + 31330.

Almost surely, 2^4002112 is an apocalyptic number.

It is an amenable number.

4002112 is a deficient number, since it is larger than the sum of its proper divisors (3939706).

4002112 is an equidigital number, since it uses as much as digits as its factorization.

4002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62545 (or 62535 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 4002112 is about 2000.5279303224. The cubic root of 4002112 is about 158.7680385396.

Adding to 4002112 its reverse (2112004), we get a palindrome (6114116).

It can be divided in two parts, 4002 and 112, that added together give a palindrome (4114).

The spelling of 4002112 in words is "four million, two thousand, one hundred twelve".