20410919 has 2 divisors, whose sum is σ = 20410920. Its totient is φ = 20410918.

The previous prime is 20410903. The next prime is 20410963. The reversal of 20410919 is 91901402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20410919 - 2⁴ = 20410903 is a prime.

It is a super-2 number, since 2×20410919² = 833211228849122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20410969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205459 + 10205460.

It is an arithmetic number, because the mean of its divisors is an integer number (10205460).

Almost surely, 2^20410919 is an apocalyptic number.

20410919 is a deficient number, since it is larger than the sum of its proper divisors (1).

20410919 is an equidigital number, since it uses as much as digits as its factorization.

20410919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 20410919 is about 4517.8445081698. The cubic root of 20410919 is about 273.2881829382.

The spelling of 20410919 in words is "twenty million, four hundred ten thousand, nine hundred nineteen".