40068047 has 6 divisors (see below), whose sum is σ = 41886432. Its totient is φ = 38325452.

The previous prime is 40067999. The next prime is 40068079. The reversal of 40068047 is 74086004.

It is not a de Polignac number, because 40068047 - 2¹⁴ = 40051663 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 (40068097) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37343 + ... + 38400.

It is an arithmetic number, because the mean of its divisors is an integer number (6981072).

Almost surely, 2^40068047 is an apocalyptic number.

40068047 is a deficient number, since it is larger than the sum of its proper divisors (1818385).

40068047 is an equidigital number, since it uses as much as digits as its factorization.

40068047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75789 (or 75766 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 40068047 is about 6329.9326220743. The cubic root of 40068047 is about 342.1890106909.

The spelling of 40068047 in words is "forty million, sixty-eight thousand, forty-seven".