40927009 has 4 divisors (see below), whose sum is σ = 40946580. Its totient is φ = 40907440.

The previous prime is 40926983. The next prime is 40927031. The reversal of 40927009 is 90072904.

40927009 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.

It can be written as a sum of positive squares in 2 ways, for example, as 15776784 + 25150225 = 3972^2 + 5015^2 .

It is a cyclic number.

It is not a de Polignac number, because 40927009 - 2¹⁵ = 40894241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40927049) 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, 6214 + ... + 10975.

It is an arithmetic number, because the mean of its divisors is an integer number (10236645).

Almost surely, 2^40927009 is an apocalyptic number.

It is an amenable number.

40927009 is a deficient number, since it is larger than the sum of its proper divisors (19571).

40927009 is a wasteful number, since it uses less digits than its factorization.

40927009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19570.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 40927009 is about 6397.4220589234. The cubic root of 40927009 is about 344.6169774282.

The spelling of 40927009 in words is "forty million, nine hundred twenty-seven thousand, nine".