20410939 has 8 divisors (see below), whose sum is σ = 21451760. Its totient is φ = 19395936.

The previous prime is 20410919. The next prime is 20410963. The reversal of 20410939 is 93901402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20410939 - 2²¹ = 18313787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20410919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4824 + ... + 8005.

It is an arithmetic number, because the mean of its divisors is an integer number (2681470).

Almost surely, 2^20410939 is an apocalyptic number.

20410939 is a deficient number, since it is larger than the sum of its proper divisors (1040821).

20410939 is a wasteful number, since it uses less digits than its factorization.

20410939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12909.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 20410939 is about 4517.8467216142. The cubic root of 20410939 is about 273.2882722003.

The spelling of 20410939 in words is "twenty million, four hundred ten thousand, nine hundred thirty-nine".