40002112 has 14 divisors (see below), whose sum is σ = 79379318. Its totient is φ = 20001024.

The previous prime is 40002103. The next prime is 40002133. The reversal of 40002112 is 21120004.

It can be written as a sum of positive squares in only one way, i.e., 36675136 + 3326976 = 6056^2 + 1824^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312453 + ... + 312580.

Almost surely, 2^40002112 is an apocalyptic number.

It is an amenable number.

40002112 is a deficient number, since it is larger than the sum of its proper divisors (39377206).

40002112 is an equidigital number, since it uses as much as digits as its factorization.

40002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625045 (or 625035 counting only the distinct ones).

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

The square root of 40002112 is about 6324.7222863933. The cubic root of 40002112 is about 342.0012083447.

Adding to 40002112 its reverse (21120004), we get a palindrome (61122116).

The spelling of 40002112 in words is "forty million, two thousand, one hundred twelve".