20982419 has 2 divisors, whose sum is σ = 20982420. Its totient is φ = 20982418.

The previous prime is 20982413. The next prime is 20982433. The reversal of 20982419 is 91428902.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20982419 is a prime.

It is a super-2 number, since 2×20982419² = 880523814183122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20982413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10491209 + 10491210.

It is an arithmetic number, because the mean of its divisors is an integer number (10491210).

Almost surely, 2^20982419 is an apocalyptic number.

20982419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20982419 is an equidigital number, since it uses as much as digits as its factorization.

20982419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 20982419 is about 4580.6570489396. The cubic root of 20982419 is about 275.8154046411.

It can be divided in two parts, 209 and 82419, that added together give a palindrome (82628).

The spelling of 20982419 in words is "twenty million, nine hundred eighty-two thousand, four hundred nineteen".