20270678 has 8 divisors (see below), whose sum is σ = 30638520. Its totient is φ = 10057840.

The previous prime is 20270671. The next prime is 20270707. The reversal of 20270678 is 87607202.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20270671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38423 + ... + 38946.

It is an arithmetic number, because the mean of its divisors is an integer number (3829815).

Almost surely, 2^20270678 is an apocalyptic number.

20270678 is a deficient number, since it is larger than the sum of its proper divisors (10367842).

20270678 is a wasteful number, since it uses less digits than its factorization.

20270678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77502.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 20270678 is about 4502.2969693258. The cubic root of 20270678 is about 272.6608337084.

The spelling of 20270678 in words is "twenty million, two hundred seventy thousand, six hundred seventy-eight".