20958108 has 48 divisors (see below), whose sum is σ = 51480576. Its totient is φ = 6626880.

The previous prime is 20958107. The next prime is 20958151. The reversal of 20958108 is 80185902.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20958101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19185 + ... + 20247.

It is an arithmetic number, because the mean of its divisors is an integer number (1072512).

Almost surely, 2^20958108 is an apocalyptic number.

It is an amenable number.

20958108 is an abundant number, since it is smaller than the sum of its proper divisors (30522468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20958108 is a wasteful number, since it uses less digits than its factorization.

20958108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1152 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 20958108 is about 4578.0026212312. The cubic root of 20958108 is about 275.7088401937.

The spelling of 20958108 in words is "twenty million, nine hundred fifty-eight thousand, one hundred eight".