420739199 has 2 divisors, whose sum is σ = 420739200. Its totient is φ = 420739198.

The previous prime is 420739169. The next prime is 420739217. The reversal of 420739199 is 991937024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420739199 - 2⁸ = 420738943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420739139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210369599 + 210369600.

It is an arithmetic number, because the mean of its divisors is an integer number (210369600).

Almost surely, 2^420739199 is an apocalyptic number.

420739199 is a deficient number, since it is larger than the sum of its proper divisors (1).

420739199 is an equidigital number, since it uses as much as digits as its factorization.

420739199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 420739199 is about 20511.9282126279. The cubic root of 420739199 is about 749.3263278096.

The spelling of 420739199 in words is "four hundred twenty million, seven hundred thirty-nine thousand, one hundred ninety-nine".