40872066 has 16 divisors (see below), whose sum is σ = 81933984. Its totient is φ = 13592384.

The previous prime is 40872053. The next prime is 40872067. The reversal of 40872066 is 66027804.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40872067) 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, 5031 + ... + 10346.

It is an arithmetic number, because the mean of its divisors is an integer number (5120874).

Almost surely, 2^40872066 is an apocalyptic number.

40872066 is an abundant number, since it is smaller than the sum of its proper divisors (41061918).

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

40872066 is a wasteful number, since it uses less digits than its factorization.

40872066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15825.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 40872066 is about 6393.1264651968. The cubic root of 40872066 is about 344.4626965084.

The spelling of 40872066 in words is "forty million, eight hundred seventy-two thousand, sixty-six".