20415214 has 16 divisors (see below), whose sum is σ = 32065920. Its totient is φ = 9729720.

The previous prime is 20415203. The next prime is 20415221. The reversal of 20415214 is 41251402.

It is a junction number, because it is equal to n+sod(n) for n = 20415191 and 20415200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16849 + ... + 18019.

It is an arithmetic number, because the mean of its divisors is an integer number (2004120).

Almost surely, 2^20415214 is an apocalyptic number.

20415214 is a deficient number, since it is larger than the sum of its proper divisors (11650706).

20415214 is a wasteful number, since it uses less digits than its factorization.

20415214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575.

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

The square root of 20415214 is about 4518.3198204642. The cubic root of 20415214 is about 273.3073506269.

Adding to 20415214 its reverse (41251402), we get a palindrome (61666616).

The spelling of 20415214 in words is "twenty million, four hundred fifteen thousand, two hundred fourteen".