669226019 has 8 divisors (see below), whose sum is σ = 834359808. Its totient is φ = 521474760.

The previous prime is 669226013. The next prime is 669226027. The reversal of 669226019 is 910622966.

669226019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 669226019 - 2²⁸ = 400790563 is a prime.

It is a super-2 number, since 2×669226019² = 895726929013176722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (669226013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4345547 + ... + 4345700.

It is an arithmetic number, because the mean of its divisors is an integer number (104294976).

Almost surely, 2^669226019 is an apocalyptic number.

669226019 is a deficient number, since it is larger than the sum of its proper divisors (165133789).

669226019 is a wasteful number, since it uses less digits than its factorization.

669226019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8691265.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 669226019 is about 25869.4031434821. The cubic root of 669226019 is about 874.6969373299.

The spelling of 669226019 in words is "six hundred sixty-nine million, two hundred twenty-six thousand, nineteen".