20454032 has 40 divisors (see below), whose sum is σ = 42437760. Its totient is φ = 9521280.

The previous prime is 20454029. The next prime is 20454041. The reversal of 20454032 is 23045402.

It is a junction number, because it is equal to n+sod(n) for n = 20453995 and 20454013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17993 + ... + 19095.

It is an arithmetic number, because the mean of its divisors is an integer number (1060944).

Almost surely, 2^20454032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20454032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21218880).

20454032 is an abundant number, since it is smaller than the sum of its proper divisors (21983728).

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

20454032 is a wasteful number, since it uses less digits than its factorization.

20454032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 20454032 is about 4522.6134037744. The cubic root of 20454032 is about 273.4804654357.

Adding to 20454032 its reverse (23045402), we get a palindrome (43499434).

The spelling of 20454032 in words is "twenty million, four hundred fifty-four thousand, thirty-two".