20443498 has 8 divisors (see below), whose sum is σ = 30713760. Its totient is φ = 10205580.

The previous prime is 20443459. The next prime is 20443523. The reversal of 20443498 is 89434402.

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

It is a super-2 number, since 2×20443498² = 835873220952008, which contains 22 as substring.

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, 6438 + ... + 9073.

It is an arithmetic number, because the mean of its divisors is an integer number (3839220).

Almost surely, 2^20443498 is an apocalyptic number.

20443498 is a deficient number, since it is larger than the sum of its proper divisors (10270262).

20443498 is a wasteful number, since it uses less digits than its factorization.

20443498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16172.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 20443498 is about 4521.4486616570. The cubic root of 20443498 is about 273.4335091205.

The spelling of 20443498 in words is "twenty million, four hundred forty-three thousand, four hundred ninety-eight".