20952266 has 8 divisors (see below), whose sum is σ = 32159424. Its totient is φ = 10232460.

The previous prime is 20952259. The next prime is 20952277. The reversal of 20952266 is 66225902.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121730 + ... + 121901.

It is an arithmetic number, because the mean of its divisors is an integer number (4019928).

Almost surely, 2^20952266 is an apocalyptic number.

20952266 is a deficient number, since it is larger than the sum of its proper divisors (11207158).

20952266 is a wasteful number, since it uses less digits than its factorization.

20952266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243676.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 20952266 is about 4577.3645255758. The cubic root of 20952266 is about 275.6832201850.

The spelling of 20952266 in words is "twenty million, nine hundred fifty-two thousand, two hundred sixty-six".