1390280299 has 2 divisors, whose sum is σ = 1390280300. Its totient is φ = 1390280298.

The previous prime is 1390280261. The next prime is 1390280327. The reversal of 1390280299 is 9920820931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1390280299 - 2¹⁵ = 1390247531 is a prime.

It is not a weakly prime, because it can be changed into another prime (1390280209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695140149 + 695140150.

It is an arithmetic number, because the mean of its divisors is an integer number (695140150).

Almost surely, 2^1390280299 is an apocalyptic number.

1390280299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1390280299 is an equidigital number, since it uses as much as digits as its factorization.

1390280299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 1390280299 is about 37286.4626774919. The cubic root of 1390280299 is about 1116.0940414301.

The spelling of 1390280299 in words is "one billion, three hundred ninety million, two hundred eighty thousand, two hundred ninety-nine".