40901109 has 4 divisors (see below), whose sum is σ = 54534816. Its totient is φ = 27267404.

The previous prime is 40901089. The next prime is 40901111. The reversal of 40901109 is 90110904.

40901109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40901109 - 2¹⁵ = 40868341 is a prime.

It is a super-3 number, since 3×40901109³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40900109) 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 3 ways as a sum of consecutive naturals, for example, 6816849 + ... + 6816854.

It is an arithmetic number, because the mean of its divisors is an integer number (13633704).

Almost surely, 2^40901109 is an apocalyptic number.

It is an amenable number.

40901109 is a deficient number, since it is larger than the sum of its proper divisors (13633707).

40901109 is a wasteful number, since it uses less digits than its factorization.

40901109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13633706.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 40901109 is about 6395.3974856923. The cubic root of 40901109 is about 344.5442669826.

The spelling of 40901109 in words is "forty million, nine hundred one thousand, one hundred nine".