1928204419 has 2 divisors, whose sum is σ = 1928204420. Its totient is φ = 1928204418.

The previous prime is 1928204359. The next prime is 1928204431. The reversal of 1928204419 is 9144028291.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1928204419 - 2¹³ = 1928196227 is a prime.

It is a super-2 number, since 2×1928204419² = 7435944562902255122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1928204119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 964102209 + 964102210.

It is an arithmetic number, because the mean of its divisors is an integer number (964102210).

Almost surely, 2^1928204419 is an apocalyptic number.

1928204419 is a deficient number, since it is larger than the sum of its proper divisors (1).

1928204419 is an equidigital number, since it uses as much as digits as its factorization.

1928204419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 1928204419 is about 43911.3244960796. The cubic root of 1928204419 is about 1244.6608365231.

The spelling of 1928204419 in words is "one billion, nine hundred twenty-eight million, two hundred four thousand, four hundred nineteen".