20460668 has 6 divisors (see below), whose sum is σ = 35806176. Its totient is φ = 10230332.

The previous prime is 20460653. The next prime is 20460677. The reversal of 20460668 is 86606402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2557580 + ... + 2557587.

It is an arithmetic number, because the mean of its divisors is an integer number (5967696).

Almost surely, 2^20460668 is an apocalyptic number.

It is an amenable number.

20460668 is a deficient number, since it is larger than the sum of its proper divisors (15345508).

20460668 is a wasteful number, since it uses less digits than its factorization.

20460668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5115171 (or 5115169 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 20460668 is about 4523.3469908907. The cubic root of 20460668 is about 273.5100377655.

The spelling of 20460668 in words is "twenty million, four hundred sixty thousand, six hundred sixty-eight".