20443372 has 12 divisors (see below), whose sum is σ = 36451296. Its totient is φ = 10028720.

The previous prime is 20443363. The next prime is 20443387. The reversal of 20443372 is 27334402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48004 + ... + 48427.

It is an arithmetic number, because the mean of its divisors is an integer number (3037608).

Almost surely, 2^20443372 is an apocalyptic number.

It is an amenable number.

20443372 is a deficient number, since it is larger than the sum of its proper divisors (16007924).

20443372 is a wasteful number, since it uses less digits than its factorization.

20443372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96488 (or 96486 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 20443372 is about 4521.4347280482. The cubic root of 20443372 is about 273.4329473658.

Adding to 20443372 its reverse (27334402), we get a palindrome (47777774).

The spelling of 20443372 in words is "twenty million, four hundred forty-three thousand, three hundred seventy-two".