20941646 has 8 divisors (see below), whose sum is σ = 34268184. Its totient is φ = 9518920.

The previous prime is 20941607. The next prime is 20941673. The reversal of 20941646 is 64614902.

It is a happy number.

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

It is a congruent number.

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, 475925 + ... + 475968.

It is an arithmetic number, because the mean of its divisors is an integer number (4283523).

Almost surely, 2^20941646 is an apocalyptic number.

20941646 is a deficient number, since it is larger than the sum of its proper divisors (13326538).

20941646 is a wasteful number, since it uses less digits than its factorization.

20941646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951906.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 20941646 is about 4576.2043223615. The cubic root of 20941646 is about 275.6366341245.

The spelling of 20941646 in words is "twenty million, nine hundred forty-one thousand, six hundred forty-six".