40052168 has 32 divisors (see below), whose sum is σ = 81681600. Its totient is φ = 18301248.

The previous prime is 40052137. The next prime is 40052179. The reversal of 40052168 is 86125004.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8843 + ... + 12581.

It is an arithmetic number, because the mean of its divisors is an integer number (2552550).

Almost surely, 2^40052168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40052168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40840800).

40052168 is an abundant number, since it is smaller than the sum of its proper divisors (41629432).

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

40052168 is a wasteful number, since it uses less digits than its factorization.

40052168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3861 (or 3857 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 40052168 is about 6328.6782190280. The cubic root of 40052168 is about 342.1438014561.

The spelling of 40052168 in words is "forty million, fifty-two thousand, one hundred sixty-eight".