20454212 has 12 divisors (see below), whose sum is σ = 36556800. Its totient is φ = 10009416.

The previous prime is 20454211. The next prime is 20454221. The reversal of 20454212 is 21245402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20454211) 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, 54212 + ... + 54587.

It is an arithmetic number, because the mean of its divisors is an integer number (3046400).

Almost surely, 2^20454212 is an apocalyptic number.

It is an amenable number.

20454212 is a deficient number, since it is larger than the sum of its proper divisors (16102588).

20454212 is a wasteful number, since it uses less digits than its factorization.

20454212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108850 (or 108848 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 20454212 is about 4522.6333037291. The cubic root of 20454212 is about 273.4812676628.

Adding to 20454212 its reverse (21245402), we get a palindrome (41699614).

The spelling of 20454212 in words is "twenty million, four hundred fifty-four thousand, two hundred twelve".