20800419 has 4 divisors (see below), whose sum is σ = 27733896. Its totient is φ = 13866944.

The previous prime is 20800399. The next prime is 20800427. The reversal of 20800419 is 91400802.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20800419 - 2⁷ = 20800291 is a prime.

It is a super-2 number, since 2×20800419² = 865314861151122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20800499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3466734 + ... + 3466739.

It is an arithmetic number, because the mean of its divisors is an integer number (6933474).

Almost surely, 2^20800419 is an apocalyptic number.

20800419 is a deficient number, since it is larger than the sum of its proper divisors (6933477).

20800419 is an equidigital number, since it uses as much as digits as its factorization.

20800419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6933476.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 20800419 is about 4560.7476360790. The cubic root of 20800419 is about 275.0156200494.

The spelling of 20800419 in words is "twenty million, eight hundred thousand, four hundred nineteen".