20414249 has 4 divisors (see below), whose sum is σ = 20424336. Its totient is φ = 20404164.

The previous prime is 20414243. The next prime is 20414257. The reversal of 20414249 is 94241402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94241402 = 2 ⋅47120701.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20414249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20414243) 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, 839 + ... + 6444.

It is an arithmetic number, because the mean of its divisors is an integer number (5106084).

Almost surely, 2^20414249 is an apocalyptic number.

It is an amenable number.

20414249 is a deficient number, since it is larger than the sum of its proper divisors (10087).

20414249 is an equidigital number, since it uses as much as digits as its factorization.

20414249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10086.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 20414249 is about 4518.2130317195. The cubic root of 20414249 is about 273.3030442675.

The spelling of 20414249 in words is "twenty million, four hundred fourteen thousand, two hundred forty-nine".