20214939 has 8 divisors (see below), whose sum is σ = 26982400. Its totient is φ = 13462056.

The previous prime is 20214937. The next prime is 20214947. The reversal of 20214939 is 93941202.

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

It is not a de Polignac number, because 20214939 - 2¹ = 20214937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20214937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162 + ... + 6360.

It is an arithmetic number, because the mean of its divisors is an integer number (3372800).

Almost surely, 2^20214939 is an apocalyptic number.

20214939 is a deficient number, since it is larger than the sum of its proper divisors (6767461).

20214939 is a wasteful number, since it uses less digits than its factorization.

20214939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7289.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 20214939 is about 4496.1026456254. The cubic root of 20214939 is about 272.4106892461.

The spelling of 20214939 in words is "twenty million, two hundred fourteen thousand, nine hundred thirty-nine".