20692443 has 8 divisors (see below), whose sum is σ = 27766288. Its totient is φ = 13706784.

The previous prime is 20692429. The next prime is 20692487. The reversal of 20692443 is 34429602.

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

It is not a de Polignac number, because 20692443 - 2⁶ = 20692379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20692443.

It is not an unprimeable number, because it can be changed into a prime (20692423) 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, 21496 + ... + 22437.

It is an arithmetic number, because the mean of its divisors is an integer number (3470786).

Almost surely, 2^20692443 is an apocalyptic number.

20692443 is a deficient number, since it is larger than the sum of its proper divisors (7073845).

20692443 is a wasteful number, since it uses less digits than its factorization.

20692443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44093.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 20692443 is about 4548.8947009136. The cubic root of 20692443 is about 274.5389210275.

The spelling of 20692443 in words is "twenty million, six hundred ninety-two thousand, four hundred forty-three".