20654234 has 16 divisors (see below), whose sum is σ = 31902720. Its totient is φ = 10024560.

The previous prime is 20654213. The next prime is 20654237. The reversal of 20654234 is 43245602.

It is not an unprimeable number, because it can be changed into a prime (20654237) 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, 8567 + ... + 10709.

It is an arithmetic number, because the mean of its divisors is an integer number (1993920).

Almost surely, 2^20654234 is an apocalyptic number.

20654234 is a deficient number, since it is larger than the sum of its proper divisors (11248486).

20654234 is a wasteful number, since it uses less digits than its factorization.

20654234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 20654234 is about 4544.6929489241. The cubic root of 20654234 is about 274.3698364195.

Adding to 20654234 its reverse (43245602), we get a palindrome (63899836).

The spelling of 20654234 in words is "twenty million, six hundred fifty-four thousand, two hundred thirty-four".