20950634 has 8 divisors (see below), whose sum is σ = 31459008. Its totient is φ = 10464300.

The previous prime is 20950603. The next prime is 20950639. The reversal of 20950634 is 43605902.

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

It is a junction number, because it is equal to n+sod(n) for n = 20950597 and 20950606.

It is not an unprimeable number, because it can be changed into a prime (20950639) 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, 2882 + ... + 7085.

It is an arithmetic number, because the mean of its divisors is an integer number (3932376).

Almost surely, 2^20950634 is an apocalyptic number.

20950634 is a deficient number, since it is larger than the sum of its proper divisors (10508374).

20950634 is a wasteful number, since it uses less digits than its factorization.

20950634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11020.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 20950634 is about 4577.1862535842. The cubic root of 20950634 is about 275.6760622210.

The spelling of 20950634 in words is "twenty million, nine hundred fifty thousand, six hundred thirty-four".