20443371 has 8 divisors (see below), whose sum is σ = 29354640. Its totient is φ = 12580512.

The previous prime is 20443363. The next prime is 20443387. The reversal of 20443371 is 17334402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20443371 - 2³ = 20443363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20443301) 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, 262056 + ... + 262133.

It is an arithmetic number, because the mean of its divisors is an integer number (3669330).

Almost surely, 2^20443371 is an apocalyptic number.

20443371 is a deficient number, since it is larger than the sum of its proper divisors (8911269).

20443371 is a wasteful number, since it uses less digits than its factorization.

20443371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524205.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 20443371 is about 4521.4346174638. The cubic root of 20443371 is about 273.4329429075.

Adding to 20443371 its reverse (17334402), we get a palindrome (37777773).

The spelling of 20443371 in words is "twenty million, four hundred forty-three thousand, three hundred seventy-one".