20252843 has 8 divisors (see below), whose sum is σ = 21951888. Its totient is φ = 18573984.

The previous prime is 20252839. The next prime is 20252849. The reversal of 20252843 is 34825202.

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

It is not a de Polignac number, because 20252843 - 2² = 20252839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20252849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2921 + ... + 7002.

It is an arithmetic number, because the mean of its divisors is an integer number (2743986).

Almost surely, 2^20252843 is an apocalyptic number.

20252843 is a deficient number, since it is larger than the sum of its proper divisors (1699045).

20252843 is a wasteful number, since it uses less digits than its factorization.

20252843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10093.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 20252843 is about 4500.3158778024. The cubic root of 20252843 is about 272.5808440658.

The spelling of 20252843 in words is "twenty million, two hundred fifty-two thousand, eight hundred forty-three".