20678026 has 8 divisors (see below), whose sum is σ = 31677120. Its totient is φ = 10118988.

The previous prime is 20677997. The next prime is 20678027. The reversal of 20678026 is 62087602.

It is a happy number.

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 (20678027) 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, 109896 + ... + 110083.

It is an arithmetic number, because the mean of its divisors is an integer number (3959640).

Almost surely, 2^20678026 is an apocalyptic number.

20678026 is a deficient number, since it is larger than the sum of its proper divisors (10999094).

20678026 is a wasteful number, since it uses less digits than its factorization.

20678026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220028.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 20678026 is about 4547.3097541294. The cubic root of 20678026 is about 274.4751465826.

The spelling of 20678026 in words is "twenty million, six hundred seventy-eight thousand, twenty-six".