40111648 has 24 divisors (see below), whose sum is σ = 80268300. Its totient is φ = 19726080.

The previous prime is 40111639. The next prime is 40111651. The reversal of 40111648 is 84611104.

It can be written as a sum of positive squares in 2 ways, for example, as 40094224 + 17424 = 6332^2 + 132^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8323 + ... + 12226.

Almost surely, 2^40111648 is an apocalyptic number.

It is an amenable number.

40111648 is an abundant number, since it is smaller than the sum of its proper divisors (40156652).

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

40111648 is a wasteful number, since it uses less digits than its factorization.

40111648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20620 (or 20612 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 40111648 is about 6333.3757191564. The cubic root of 40111648 is about 342.3130860716.

The spelling of 40111648 in words is "forty million, one hundred eleven thousand, six hundred forty-eight".