1420417399 has 2 divisors, whose sum is σ = 1420417400. Its totient is φ = 1420417398.

The previous prime is 1420417387. The next prime is 1420417421. The reversal of 1420417399 is 9937140241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1420417399 - 2⁵ = 1420417367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420417319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710208699 + 710208700.

It is an arithmetic number, because the mean of its divisors is an integer number (710208700).

Almost surely, 2^1420417399 is an apocalyptic number.

1420417399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420417399 is an equidigital number, since it uses as much as digits as its factorization.

1420417399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1420417399 is about 37688.4252655905. The cubic root of 1420417399 is about 1124.1009835584.

The spelling of 1420417399 in words is "one billion, four hundred twenty million, four hundred seventeen thousand, three hundred ninety-nine".