40694339405 has 8 divisors (see below), whose sum is σ = 48855631200. Its totient is φ = 32540522256.

The previous prime is 40694339401. The next prime is 40694339417. The reversal of 40694339405 is 50493349604.

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 40694339405 - 2² = 40694339401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40694339405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40694339401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1856675 + ... + 1878464.

It is an arithmetic number, because the mean of its divisors is an integer number (6106953900).

Almost surely, 2^40694339405 is an apocalyptic number.

It is an amenable number.

40694339405 is a deficient number, since it is larger than the sum of its proper divisors (8161291795).

40694339405 is a wasteful number, since it uses less digits than its factorization.

40694339405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737323.

The product of its (nonzero) digits is 1399680, while the sum is 47.

The spelling of 40694339405 in words is "forty billion, six hundred ninety-four million, three hundred thirty-nine thousand, four hundred five".