20471414 has 8 divisors (see below), whose sum is σ = 31360608. Its totient is φ = 10017880.

The previous prime is 20471413. The next prime is 20471441. The reversal of 20471414 is 41417402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20471414.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20471411) 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, 108797 + ... + 108984.

It is an arithmetic number, because the mean of its divisors is an integer number (3920076).

Almost surely, 2^20471414 is an apocalyptic number.

20471414 is a deficient number, since it is larger than the sum of its proper divisors (10889194).

20471414 is a wasteful number, since it uses less digits than its factorization.

20471414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217830.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 20471414 is about 4524.5346722066. The cubic root of 20471414 is about 273.5579121305.

Adding to 20471414 its reverse (41417402), we get a palindrome (61888816).

The spelling of 20471414 in words is "twenty million, four hundred seventy-one thousand, four hundred fourteen".