20942950 has 48 divisors (see below), whose sum is σ = 45398880. Its totient is φ = 7038720.

The previous prime is 20942917. The next prime is 20942951. The reversal of 20942950 is 5924902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20942951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17986 + ... + 19114.

It is an arithmetic number, because the mean of its divisors is an integer number (945810).

Almost surely, 2^20942950 is an apocalyptic number.

20942950 is an abundant number, since it is smaller than the sum of its proper divisors (24455930).

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

20942950 is a wasteful number, since it uses less digits than its factorization.

20942950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201 (or 1196 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 20942950 is about 4576.3467962994. The cubic root of 20942950 is about 275.6423551442.

The spelling of 20942950 in words is "twenty million, nine hundred forty-two thousand, nine hundred fifty".