1404785399 has 2 divisors, whose sum is σ = 1404785400. Its totient is φ = 1404785398.

The previous prime is 1404785381. The next prime is 1404785413. The reversal of 1404785399 is 9935874041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1404785399 - 2¹² = 1404781303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1404785699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702392699 + 702392700.

It is an arithmetic number, because the mean of its divisors is an integer number (702392700).

Almost surely, 2^1404785399 is an apocalyptic number.

1404785399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404785399 is an equidigital number, since it uses as much as digits as its factorization.

1404785399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 1404785399 is about 37480.4668994398. The cubic root of 1404785399 is about 1119.9621051698.

The spelling of 1404785399 in words is "one billion, four hundred four million, seven hundred eighty-five thousand, three hundred ninety-nine".