40066698 has 16 divisors (see below), whose sum is σ = 91581120. Its totient is φ = 11447616.

The previous prime is 40066693. The next prime is 40066699. The reversal of 40066698 is 89666004.

40066698 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 (40066693) 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 7 ways as a sum of consecutive naturals, for example, 476943 + ... + 477026.

It is an arithmetic number, because the mean of its divisors is an integer number (5723820).

Almost surely, 2^40066698 is an apocalyptic number.

40066698 is an abundant number, since it is smaller than the sum of its proper divisors (51514422).

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

40066698 is a wasteful number, since it uses less digits than its factorization.

40066698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953981.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 40066698 is about 6329.8260639610. The cubic root of 40066698 is about 342.1851704059.

The spelling of 40066698 in words is "forty million, sixty-six thousand, six hundred ninety-eight".