20354472 has 48 divisors (see below), whose sum is σ = 58032000. Its totient is φ = 6427296.

The previous prime is 20354449. The next prime is 20354479. The reversal of 20354472 is 27445302.

It is not an unprimeable number, because it can be changed into a prime (20354479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6072 + ... + 8807.

It is an arithmetic number, because the mean of its divisors is an integer number (1209000).

Almost surely, 2^20354472 is an apocalyptic number.

It is an amenable number.

20354472 is an abundant number, since it is smaller than the sum of its proper divisors (37677528).

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

20354472 is a wasteful number, since it uses less digits than its factorization.

20354472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14910 (or 14903 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 20354472 is about 4511.5930667559. The cubic root of 20354472 is about 273.0360214917.

Adding to 20354472 its reverse (27445302), we get a palindrome (47799774).

The spelling of 20354472 in words is "twenty million, three hundred fifty-four thousand, four hundred seventy-two".