40111912 has 16 divisors (see below), whose sum is σ = 75451860. Its totient is φ = 19991424.

The previous prime is 40111909. The next prime is 40111913. The reversal of 40111912 is 21911104.

It can be written as a sum of positive squares in 2 ways, for example, as 40018276 + 93636 = 6326^2 + 306^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40111912.

It is not an unprimeable number, because it can be changed into a prime (40111913) 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, 5373 + ... + 10444.

Almost surely, 2^40111912 is an apocalyptic number.

It is an amenable number.

40111912 is a deficient number, since it is larger than the sum of its proper divisors (35339948).

40111912 is a wasteful number, since it uses less digits than its factorization.

40111912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16140 (or 16136 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 40111912 is about 6333.3965610879. The cubic root of 40111912 is about 342.3138370625.

The spelling of 40111912 in words is "forty million, one hundred eleven thousand, nine hundred twelve".