20952443 has 8 divisors (see below), whose sum is σ = 21215040. Its totient is φ = 20691720.

The previous prime is 20952433. The next prime is 20952457. The reversal of 20952443 is 34425902.

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

It is a cyclic number.

It is not a de Polignac number, because 20952443 - 2¹⁴ = 20936059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20952403) 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, 42428 + ... + 42918.

It is an arithmetic number, because the mean of its divisors is an integer number (2651880).

Almost surely, 2^20952443 is an apocalyptic number.

20952443 is a deficient number, since it is larger than the sum of its proper divisors (262597).

20952443 is a wasteful number, since it uses less digits than its factorization.

20952443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 20952443 is about 4577.3838598046. The cubic root of 20952443 is about 275.6839964860.

The spelling of 20952443 in words is "twenty million, nine hundred fifty-two thousand, four hundred forty-three".