20995346 has 8 divisors (see below), whose sum is σ = 32009484. Its totient is φ = 10325520.

The previous prime is 20995307. The next prime is 20995349. The reversal of 20995346 is 64359902.

It can be written as a sum of positive squares in 2 ways, for example, as 20205025 + 790321 = 4495^2 + 889^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20995349) 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, 85925 + ... + 86168.

Almost surely, 2^20995346 is an apocalyptic number.

20995346 is a deficient number, since it is larger than the sum of its proper divisors (11014138).

20995346 is a wasteful number, since it uses less digits than its factorization.

20995346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172156.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 20995346 is about 4582.0678737880. The cubic root of 20995346 is about 275.8720351274.

The spelling of 20995346 in words is "twenty million, nine hundred ninety-five thousand, three hundred forty-six".