949420019 has 2 divisors, whose sum is σ = 949420020. Its totient is φ = 949420018.

The previous prime is 949420007. The next prime is 949420033. The reversal of 949420019 is 910024949.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-949420019 is a prime.

It is a super-2 number, since 2×949420019² = 1802796744955920722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (949420819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474710009 + 474710010.

It is an arithmetic number, because the mean of its divisors is an integer number (474710010).

Almost surely, 2^949420019 is an apocalyptic number.

949420019 is a deficient number, since it is larger than the sum of its proper divisors (1).

949420019 is an equidigital number, since it uses as much as digits as its factorization.

949420019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 949420019 is about 30812.6600442091. The cubic root of 949420019 is about 982.8474795161.

The spelling of 949420019 in words is "nine hundred forty-nine million, four hundred twenty thousand, nineteen".