20352039 has 4 divisors (see below), whose sum is σ = 27136056. Its totient is φ = 13568024.

The previous prime is 20352037. The next prime is 20352047. The reversal of 20352039 is 93025302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20352039 - 2¹ = 20352037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3392004 + ... + 3392009.

It is an arithmetic number, because the mean of its divisors is an integer number (6784014).

Almost surely, 2^20352039 is an apocalyptic number.

20352039 is a deficient number, since it is larger than the sum of its proper divisors (6784017).

20352039 is an equidigital number, since it uses as much as digits as its factorization.

20352039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6784016.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 20352039 is about 4511.3234200177. The cubic root of 20352039 is about 273.0251422590.

The spelling of 20352039 in words is "twenty million, three hundred fifty-two thousand, thirty-nine".