20895434 has 16 divisors (see below), whose sum is σ = 35887488. Its totient is φ = 8938512.

The previous prime is 20895403. The next prime is 20895443. The reversal of 20895434 is 43459802.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 20895394 and 20895403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9152 + ... + 11204.

It is an arithmetic number, because the mean of its divisors is an integer number (2242968).

Almost surely, 2^20895434 is an apocalyptic number.

20895434 is a deficient number, since it is larger than the sum of its proper divisors (14992054).

20895434 is a wasteful number, since it uses less digits than its factorization.

20895434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 20895434 is about 4571.1523711204. The cubic root of 20895434 is about 275.4337353791.

The spelling of 20895434 in words is "twenty million, eight hundred ninety-five thousand, four hundred thirty-four".