20612834 has 24 divisors (see below), whose sum is σ = 35782320. Its totient is φ = 8874360.

The previous prime is 20612833. The next prime is 20612863. The reversal of 20612834 is 43821602.

It is not an unprimeable number, because it can be changed into a prime (20612831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2357 + ... + 6839.

It is an arithmetic number, because the mean of its divisors is an integer number (1490930).

Almost surely, 2^20612834 is an apocalyptic number.

20612834 is a deficient number, since it is larger than the sum of its proper divisors (15169486).

20612834 is a wasteful number, since it uses less digits than its factorization.

20612834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4526 (or 4515 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 20612834 is about 4540.1359010497. The cubic root of 20612834 is about 274.1863952733.

The spelling of 20612834 in words is "twenty million, six hundred twelve thousand, eight hundred thirty-four".