40014407 has 2 divisors, whose sum is σ = 40014408. Its totient is φ = 40014406.

The previous prime is 40014391. The next prime is 40014409. The reversal of 40014407 is 70441004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40014407 - 2⁴ = 40014391 is a prime.

Together with 40014409, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40014409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20007203 + 20007204.

It is an arithmetic number, because the mean of its divisors is an integer number (20007204).

Almost surely, 2^40014407 is an apocalyptic number.

40014407 is a deficient number, since it is larger than the sum of its proper divisors (1).

40014407 is an equidigital number, since it uses as much as digits as its factorization.

40014407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 40014407 is about 6325.6941911540. The cubic root of 40014407 is about 342.0362437792.

The spelling of 40014407 in words is "forty million, fourteen thousand, four hundred seven".