40201668 has 144 divisors (see below), whose sum is σ = 120347136. Its totient is φ = 11197440.

The previous prime is 40201661. The next prime is 40201687. The reversal of 40201668 is 86610204.

40201668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40201661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 246555 + ... + 246717.

It is an arithmetic number, because the mean of its divisors is an integer number (835744).

Almost surely, 2^40201668 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 40201668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60173568).

40201668 is an abundant number, since it is smaller than the sum of its proper divisors (80145468).

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

40201668 is a wasteful number, since it uses less digits than its factorization.

40201668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 40201668 is about 6340.4785308366. The cubic root of 40201668 is about 342.5689718486.

The spelling of 40201668 in words is "forty million, two hundred one thousand, six hundred sixty-eight".