20215414 has 8 divisors (see below), whose sum is σ = 32106888. Its totient is φ = 9513120.

The previous prime is 20215381. The next prime is 20215417. The reversal of 20215414 is 41451202.

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

It is a junction number, because it is equal to n+sod(n) for n = 20215391 and 20215400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20215417) 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, 297252 + ... + 297319.

It is an arithmetic number, because the mean of its divisors is an integer number (4013361).

Almost surely, 2^20215414 is an apocalyptic number.

20215414 is a deficient number, since it is larger than the sum of its proper divisors (11891474).

20215414 is a wasteful number, since it uses less digits than its factorization.

20215414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594590.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 20215414 is about 4496.1554688422. The cubic root of 20215414 is about 272.4128228838.

Adding to 20215414 its reverse (41451202), we get a palindrome (61666616).

The spelling of 20215414 in words is "twenty million, two hundred fifteen thousand, four hundred fourteen".