20938034 has 8 divisors (see below), whose sum is σ = 33823020. Its totient is φ = 9663696.

The previous prime is 20938031. The next prime is 20938039. The reversal of 20938034 is 43083902.

It can be written as a sum of positive squares in 2 ways, for example, as 15578809 + 5359225 = 3947^2 + 2315^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20937988 and 20938006.

It is not an unprimeable number, because it can be changed into a prime (20938031) 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, 402629 + ... + 402680.

Almost surely, 2^20938034 is an apocalyptic number.

20938034 is a deficient number, since it is larger than the sum of its proper divisors (12884986).

20938034 is a wasteful number, since it uses less digits than its factorization.

20938034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805324.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 20938034 is about 4575.8096551321. The cubic root of 20938034 is about 275.6207860106.

The spelling of 20938034 in words is "twenty million, nine hundred thirty-eight thousand, thirty-four".