40920189 has 8 divisors (see below), whose sum is σ = 56441760. Its totient is φ = 26339376.

The previous prime is 40920181. The next prime is 40920193. The reversal of 40920189 is 98102904.

40920189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40920189 - 2³ = 40920181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40920181) 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, 235087 + ... + 235260.

It is an arithmetic number, because the mean of its divisors is an integer number (7055220).

Almost surely, 2^40920189 is an apocalyptic number.

It is an amenable number.

40920189 is a deficient number, since it is larger than the sum of its proper divisors (15521571).

40920189 is a wasteful number, since it uses less digits than its factorization.

40920189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470379.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 40920189 is about 6396.8890095108. The cubic root of 40920189 is about 344.5978342560.

The spelling of 40920189 in words is "forty million, nine hundred twenty thousand, one hundred eighty-nine".