20426414 has 4 divisors (see below), whose sum is σ = 30639624. Its totient is φ = 10213206.

The previous prime is 20426389. The next prime is 20426423. The reversal of 20426414 is 41462402.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20426414.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106602 + ... + 5106605.

It is an arithmetic number, because the mean of its divisors is an integer number (7659906).

Almost surely, 2^20426414 is an apocalyptic number.

20426414 is a deficient number, since it is larger than the sum of its proper divisors (10213210).

20426414 is a wasteful number, since it uses less digits than its factorization.

20426414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10213209.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 20426414 is about 4519.5590492879. The cubic root of 20426414 is about 273.3573212472.

Adding to 20426414 its reverse (41462402), we get a palindrome (61888816).

The spelling of 20426414 in words is "twenty million, four hundred twenty-six thousand, four hundred fourteen".