20678122 has 8 divisors (see below), whose sum is σ = 31391136. Its totient is φ = 10214412.

The previous prime is 20678117. The next prime is 20678123. The reversal of 20678122 is 22187602.

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 (20678123) 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, 62118 + ... + 62449.

It is an arithmetic number, because the mean of its divisors is an integer number (3923892).

Almost surely, 2^20678122 is an apocalyptic number.

20678122 is a deficient number, since it is larger than the sum of its proper divisors (10713014).

20678122 is a wasteful number, since it uses less digits than its factorization.

20678122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124652.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 20678122 is about 4547.3203098088. The cubic root of 20678122 is about 274.4755713422.

The spelling of 20678122 in words is "twenty million, six hundred seventy-eight thousand, one hundred twenty-two".