40224139 has 2 divisors, whose sum is σ = 40224140. Its totient is φ = 40224138.

The previous prime is 40224137. The next prime is 40224169. The reversal of 40224139 is 93142204.

40224139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40224139 - 2¹ = 40224137 is a prime.

Together with 40224137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40224133) 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, 20112069 + 20112070.

It is an arithmetic number, because the mean of its divisors is an integer number (20112070).

Almost surely, 2^40224139 is an apocalyptic number.

40224139 is a deficient number, since it is larger than the sum of its proper divisors (1).

40224139 is an equidigital number, since it uses as much as digits as its factorization.

40224139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 40224139 is about 6342.2503104182. The cubic root of 40224139 is about 342.6327870577.

The spelling of 40224139 in words is "forty million, two hundred twenty-four thousand, one hundred thirty-nine".