40054039 has 2 divisors, whose sum is σ = 40054040. Its totient is φ = 40054038.

The previous prime is 40054019. The next prime is 40054043. The reversal of 40054039 is 93045004.

40054039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40054039 - 2⁷ = 40053911 is a prime.

It is equal to p_2436721 and since 40054039 and 2436721 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40054019) 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 as a sum of consecutive naturals, namely, 20027019 + 20027020.

It is an arithmetic number, because the mean of its divisors is an integer number (20027020).

Almost surely, 2^40054039 is an apocalyptic number.

40054039 is a deficient number, since it is larger than the sum of its proper divisors (1).

40054039 is an equidigital number, since it uses as much as digits as its factorization.

40054039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 40054039 is about 6328.8260364779. The cubic root of 40054039 is about 342.1491290169.

The spelling of 40054039 in words is "forty million, fifty-four thousand, thirty-nine".