20346668 has 12 divisors (see below), whose sum is σ = 35638680. Its totient is φ = 10164192.

The previous prime is 20346659. The next prime is 20346673. The reversal of 20346668 is 86664302.

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, 6323 + ... + 8981.

It is an arithmetic number, because the mean of its divisors is an integer number (2969890).

Almost surely, 2^20346668 is an apocalyptic number.

It is an amenable number.

20346668 is a deficient number, since it is larger than the sum of its proper divisors (15292012).

20346668 is a wasteful number, since it uses less digits than its factorization.

20346668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4576 (or 4574 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 20346668 is about 4510.7281008724. The cubic root of 20346668 is about 273.0011226009.

The spelling of 20346668 in words is "twenty million, three hundred forty-six thousand, six hundred sixty-eight".