40065198 has 16 divisors (see below), whose sum is σ = 80762880. Its totient is φ = 13249656.

The previous prime is 40065173. The next prime is 40065203. The reversal of 40065198 is 89156004.

40065198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 25528 + ... + 27051.

It is an arithmetic number, because the mean of its divisors is an integer number (5047680).

Almost surely, 2^40065198 is an apocalyptic number.

40065198 is an abundant number, since it is smaller than the sum of its proper divisors (40697682).

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

40065198 is a wasteful number, since it uses less digits than its factorization.

40065198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52711.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 40065198 is about 6329.7075761839. The cubic root of 40065198 is about 342.1809001584.

The spelling of 40065198 in words is "forty million, sixty-five thousand, one hundred ninety-eight".