1401324439 has 2 divisors, whose sum is σ = 1401324440. Its totient is φ = 1401324438.

The previous prime is 1401324409. The next prime is 1401324479. The reversal of 1401324439 is 9344231041.

It is a weak prime.

It is an emirp because it is prime and its reverse (9344231041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1401324439 - 2¹⁹ = 1400800151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1401324439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401324409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700662219 + 700662220.

It is an arithmetic number, because the mean of its divisors is an integer number (700662220).

Almost surely, 2^1401324439 is an apocalyptic number.

1401324439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401324439 is an equidigital number, since it uses as much as digits as its factorization.

1401324439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1401324439 is about 37434.2682444842. The cubic root of 1401324439 is about 1119.0416011972.

The spelling of 1401324439 in words is "one billion, four hundred one million, three hundred twenty-four thousand, four hundred thirty-nine".