40666272 has 48 divisors (see below), whose sum is σ = 107503200. Its totient is φ = 13459712.

The previous prime is 40666271. The next prime is 40666273. The reversal of 40666272 is 27266604.

It is an interprime number because it is at equal distance from previous prime (40666271) and next prime (40666273).

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (40666271) 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, 12883 + ... + 15725.

It is an arithmetic number, because the mean of its divisors is an integer number (2239650).

Almost surely, 2^40666272 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 40666272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53751600).

40666272 is an abundant number, since it is smaller than the sum of its proper divisors (66836928).

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

40666272 is a wasteful number, since it uses less digits than its factorization.

40666272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005 (or 2997 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 40666272 is about 6377.0112121589. The cubic root of 40666272 is about 343.8835914035.

The spelling of 40666272 in words is "forty million, six hundred sixty-six thousand, two hundred seventy-two".