40794047 has 16 divisors (see below), whose sum is σ = 49047552. Its totient is φ = 33190560.

The previous prime is 40794043. The next prime is 40794049. The reversal of 40794047 is 74049704.

It is a cyclic number.

It is not a de Polignac number, because 40794047 - 2² = 40794043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40793998 and 40794016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40794043) 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 15 ways as a sum of consecutive naturals, for example, 9728 + ... + 13274.

It is an arithmetic number, because the mean of its divisors is an integer number (3065472).

Almost surely, 2^40794047 is an apocalyptic number.

40794047 is a deficient number, since it is larger than the sum of its proper divisors (8253505).

40794047 is a wasteful number, since it uses less digits than its factorization.

40794047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638.

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

The square root of 40794047 is about 6387.0217629189. The cubic root of 40794047 is about 344.2433800260.

The spelling of 40794047 in words is "forty million, seven hundred ninety-four thousand, forty-seven".