40004112 has 40 divisors (see below), whose sum is σ = 103998304. Its totient is φ = 13250304.

The previous prime is 40004089. The next prime is 40004117. The reversal of 40004112 is 21140004.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (40004117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5268 + ... + 10380.

Almost surely, 2^40004112 is an apocalyptic number.

It is an amenable number.

40004112 is an abundant number, since it is smaller than the sum of its proper divisors (63994192).

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

40004112 is a wasteful number, since it uses less digits than its factorization.

40004112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287 (or 5281 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 40004112 is about 6324.8803941260. The cubic root of 40004112 is about 342.0069079689.

Adding to 40004112 its reverse (21140004), we get a palindrome (61144116).

The spelling of 40004112 in words is "forty million, four thousand, one hundred twelve".