11400439 has 2 divisors, whose sum is σ = 11400440. Its totient is φ = 11400438.

The previous prime is 11400427. The next prime is 11400443. The reversal of 11400439 is 93400411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11400439 - 2⁵ = 11400407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11400469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5700219 + 5700220.

It is an arithmetic number, because the mean of its divisors is an integer number (5700220).

Almost surely, 2^11400439 is an apocalyptic number.

11400439 is a deficient number, since it is larger than the sum of its proper divisors (1).

11400439 is an equidigital number, since it uses as much as digits as its factorization.

11400439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 11400439 is about 3376.4536128903. The cubic root of 11400439 is about 225.0646003807.

The spelling of 11400439 in words is "eleven million, four hundred thousand, four hundred thirty-nine".