20443452 has 24 divisors (see below), whose sum is σ = 50507856. Its totient is φ = 6413568.

The previous prime is 20443439. The next prime is 20443453. The reversal of 20443452 is 25434402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20443453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49903 + ... + 50310.

It is an arithmetic number, because the mean of its divisors is an integer number (2104494).

Almost surely, 2^20443452 is an apocalyptic number.

It is an amenable number.

20443452 is an abundant number, since it is smaller than the sum of its proper divisors (30064404).

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

20443452 is a wasteful number, since it uses less digits than its factorization.

20443452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100237 (or 100235 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 20443452 is about 4521.4435747889. The cubic root of 20443452 is about 273.4333040357.

Adding to 20443452 its reverse (25434402), we get a palindrome (45877854).

The spelling of 20443452 in words is "twenty million, four hundred forty-three thousand, four hundred fifty-two".