20039235 has 8 divisors (see below), whose sum is σ = 32062800. Its totient is φ = 10687584.

The previous prime is 20039221. The next prime is 20039251. The reversal of 20039235 is 53293002.

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

It is not a de Polignac number, because 20039235 - 2⁸ = 20038979 is a prime.

It is an unprimeable number.

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, 667960 + ... + 667989.

It is an arithmetic number, because the mean of its divisors is an integer number (4007850).

Almost surely, 2^20039235 is an apocalyptic number.

20039235 is a deficient number, since it is larger than the sum of its proper divisors (12023565).

20039235 is a wasteful number, since it uses less digits than its factorization.

20039235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335957.

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

The square root of 20039235 is about 4476.5204121058. The cubic root of 20039235 is about 271.6191460074.

Subtracting from 20039235 its product of nonzero digits (1620), we obtain a triangular number (20037615 = T₆₃₃₀).

The spelling of 20039235 in words is "twenty million, thirty-nine thousand, two hundred thirty-five".