20415414 has 16 divisors (see below), whose sum is σ = 40908528. Its totient is φ = 6792192.

The previous prime is 20415401. The next prime is 20415431. The reversal of 20415414 is 41451402.

It is a happy number.

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, 514 + ... + 6410.

It is an arithmetic number, because the mean of its divisors is an integer number (2556783).

Almost surely, 2^20415414 is an apocalyptic number.

20415414 is an abundant number, since it is smaller than the sum of its proper divisors (20493114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20415414 is a wasteful number, since it uses less digits than its factorization.

20415414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6479.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 20415414 is about 4518.3419525308. The cubic root of 20415414 is about 273.3082431197.

Adding to 20415414 its reverse (41451402), we get a palindrome (61866816).

The spelling of 20415414 in words is "twenty million, four hundred fifteen thousand, four hundred fourteen".