20414851 has 4 divisors (see below), whose sum is σ = 20605752. Its totient is φ = 20223952.

The previous prime is 20414819. The next prime is 20414857. The reversal of 20414851 is 15841402.

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 20414851 - 2⁵ = 20414819 is a prime.

It is a super-2 number, since 2×20414851² = 833532282704402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20414857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95290 + ... + 95503.

It is an arithmetic number, because the mean of its divisors is an integer number (5151438).

Almost surely, 2^20414851 is an apocalyptic number.

20414851 is a deficient number, since it is larger than the sum of its proper divisors (190901).

20414851 is a wasteful number, since it uses less digits than its factorization.

20414851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190900.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 20414851 is about 4518.2796504865. The cubic root of 20414851 is about 273.3057307377.

The spelling of 20414851 in words is "twenty million, four hundred fourteen thousand, eight hundred fifty-one".