40974409 has 4 divisors (see below), whose sum is σ = 46827904. Its totient is φ = 35120916.

The previous prime is 40974383. The next prime is 40974413. The reversal of 40974409 is 90447904.

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 40974409 - 2¹⁹ = 40450121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40974209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2926737 + ... + 2926750.

It is an arithmetic number, because the mean of its divisors is an integer number (11706976).

Almost surely, 2^40974409 is an apocalyptic number.

It is an amenable number.

40974409 is a deficient number, since it is larger than the sum of its proper divisors (5853495).

40974409 is an equidigital number, since it uses as much as digits as its factorization.

40974409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5853494.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 40974409 is about 6401.1256041418. The cubic root of 40974409 is about 344.7499665640.

The spelling of 40974409 in words is "forty million, nine hundred seventy-four thousand, four hundred nine".