1409918399 has 2 divisors, whose sum is σ = 1409918400. Its totient is φ = 1409918398.

The previous prime is 1409918387. The next prime is 1409918407. The reversal of 1409918399 is 9938199041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1409918399 - 2¹⁶ = 1409852863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1409918399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1409918329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704959199 + 704959200.

It is an arithmetic number, because the mean of its divisors is an integer number (704959200).

Almost surely, 2^1409918399 is an apocalyptic number.

1409918399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1409918399 is an equidigital number, since it uses as much as digits as its factorization.

1409918399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 53.

The square root of 1409918399 is about 37548.8801297722. The cubic root of 1409918399 is about 1121.3245381293.

The spelling of 1409918399 in words is "one billion, four hundred nine million, nine hundred eighteen thousand, three hundred ninety-nine".