20975414 has 4 divisors (see below), whose sum is σ = 31463124. Its totient is φ = 10487706.

The previous prime is 20975413. The next prime is 20975417. The reversal of 20975414 is 41457902.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20975413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5243852 + ... + 5243855.

It is an arithmetic number, because the mean of its divisors is an integer number (7865781).

Almost surely, 2^20975414 is an apocalyptic number.

20975414 is a deficient number, since it is larger than the sum of its proper divisors (10487710).

20975414 is a wasteful number, since it uses less digits than its factorization.

20975414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10487709.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 20975414 is about 4579.8923568136. The cubic root of 20975414 is about 275.7847074821.

The spelling of 20975414 in words is "twenty million, nine hundred seventy-five thousand, four hundred fourteen".