20934934 has 8 divisors (see below), whose sum is σ = 31650048. Its totient is φ = 10384920.

The previous prime is 20934931. The next prime is 20934943. The reversal of 20934934 is 43943902.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20934934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20934931) 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, 40957 + ... + 41464.

It is an arithmetic number, because the mean of its divisors is an integer number (3956256).

Almost surely, 2^20934934 is an apocalyptic number.

20934934 is a deficient number, since it is larger than the sum of its proper divisors (10715114).

20934934 is a wasteful number, since it uses less digits than its factorization.

20934934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82550.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 20934934 is about 4575.4709047266. The cubic root of 20934934 is about 275.6071829091.

The spelling of 20934934 in words is "twenty million, nine hundred thirty-four thousand, nine hundred thirty-four".