20202419 has 2 divisors, whose sum is σ = 20202420. Its totient is φ = 20202418.

The previous prime is 20202379. The next prime is 20202437. The reversal of 20202419 is 91420202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202419 is a prime.

It is a super-2 number, since 2×20202419² = 816275466903122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20202419.

It is not a weakly prime, because it can be changed into another prime (20202439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101209 + 10101210.

It is an arithmetic number, because the mean of its divisors is an integer number (10101210).

Almost surely, 2^20202419 is an apocalyptic number.

20202419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202419 is an equidigital number, since it uses as much as digits as its factorization.

20202419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 20202419 is about 4494.7101130106. The cubic root of 20202419 is about 272.3544389951.

The spelling of 20202419 in words is "twenty million, two hundred two thousand, four hundred nineteen".