1428424819 has 2 divisors, whose sum is σ = 1428424820. Its totient is φ = 1428424818.

The previous prime is 1428424801. The next prime is 1428424901. The reversal of 1428424819 is 9184248241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1428424819 - 2⁵ = 1428424787 is a prime.

It is a super-2 number, since 2×1428424819² = 4080794927070365522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1428424219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714212409 + 714212410.

It is an arithmetic number, because the mean of its divisors is an integer number (714212410).

Almost surely, 2^1428424819 is an apocalyptic number.

1428424819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428424819 is an equidigital number, since it uses as much as digits as its factorization.

1428424819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 147456, while the sum is 43.

The square root of 1428424819 is about 37794.5077888309. The cubic root of 1428424819 is about 1126.2093514244.

The spelling of 1428424819 in words is "one billion, four hundred twenty-eight million, four hundred twenty-four thousand, eight hundred nineteen".