20214472 has 16 divisors (see below), whose sum is σ = 38784240. Its totient is φ = 9872016.

The previous prime is 20214451. The next prime is 20214497. The reversal of 20214472 is 27441202.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29038 + ... + 29725.

It is an arithmetic number, because the mean of its divisors is an integer number (2424015).

Almost surely, 2^20214472 is an apocalyptic number.

It is an amenable number.

20214472 is a deficient number, since it is larger than the sum of its proper divisors (18569768).

20214472 is a wasteful number, since it uses less digits than its factorization.

20214472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58812 (or 58808 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 20214472 is about 4496.0507114578. The cubic root of 20214472 is about 272.4085915109.

Adding to 20214472 its reverse (27441202), we get a palindrome (47655674).

The spelling of 20214472 in words is "twenty million, two hundred fourteen thousand, four hundred seventy-two".