20852043 has 16 divisors (see below), whose sum is σ = 28250112. Its totient is φ = 13680000.

The previous prime is 20852023. The next prime is 20852087. The reversal of 20852043 is 34025802.

It is not a de Polignac number, because 20852043 - 2¹⁷ = 20720971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20852023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86403 + ... + 86643.

It is an arithmetic number, because the mean of its divisors is an integer number (1765632).

Almost surely, 2^20852043 is an apocalyptic number.

20852043 is a deficient number, since it is larger than the sum of its proper divisors (7398069).

20852043 is a wasteful number, since it uses less digits than its factorization.

20852043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20852043 is about 4566.4037272234. The cubic root of 20852043 is about 275.2429500397.

Adding to 20852043 its reverse (34025802), we get a palindrome (54877845).

The spelling of 20852043 in words is "twenty million, eight hundred fifty-two thousand, forty-three".