40409774 has 8 divisors (see below), whose sum is σ = 60652560. Its totient is φ = 20192256.

The previous prime is 40409773. The next prime is 40409779. The reversal of 40409774 is 47790404.

40409774 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 a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40409773) 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, 1619 + ... + 9134.

It is an arithmetic number, because the mean of its divisors is an integer number (7581570).

Almost surely, 2^40409774 is an apocalyptic number.

40409774 is a deficient number, since it is larger than the sum of its proper divisors (20242786).

40409774 is a wasteful number, since it uses less digits than its factorization.

40409774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12634.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 40409774 is about 6356.8682541012. The cubic root of 40409774 is about 343.1590634318.

The spelling of 40409774 in words is "forty million, four hundred nine thousand, seven hundred seventy-four".