20214415 has 16 divisors (see below), whose sum is σ = 26234208. Its totient is φ = 14864256.

The previous prime is 20214413. The next prime is 20214427. The reversal of 20214415 is 51441202.

It is a cyclic number.

It is not a de Polignac number, because 20214415 - 2¹ = 20214413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20214392 and 20214401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19449 + ... + 20461.

It is an arithmetic number, because the mean of its divisors is an integer number (1639638).

Almost surely, 2^20214415 is an apocalyptic number.

20214415 is a deficient number, since it is larger than the sum of its proper divisors (6019793).

20214415 is a wasteful number, since it uses less digits than its factorization.

20214415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338.

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

The square root of 20214415 is about 4496.0443725568. The cubic root of 20214415 is about 272.4083354681.

Adding to 20214415 its reverse (51441202), we get a palindrome (71655617).

The spelling of 20214415 in words is "twenty million, two hundred fourteen thousand, four hundred fifteen".