40794013 has 8 divisors (see below), whose sum is σ = 44336600. Its totient is φ = 37309248.

The previous prime is 40794011. The next prime is 40794031. The reversal of 40794013 is 31049704.

It can be written as a sum of positive squares in 4 ways, for example, as 9847044 + 30946969 = 3138^2 + 5563^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40794013 - 2¹ = 40794011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40794011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12978 + ... + 15811.

It is an arithmetic number, because the mean of its divisors is an integer number (5542075).

Almost surely, 2^40794013 is an apocalyptic number.

It is an amenable number.

40794013 is a deficient number, since it is larger than the sum of its proper divisors (3542587).

40794013 is a wasteful number, since it uses less digits than its factorization.

40794013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28911.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 40794013 is about 6387.0191012710. The cubic root of 40794013 is about 344.2432843888.

The spelling of 40794013 in words is "forty million, seven hundred ninety-four thousand, thirteen".