20678088 has 32 divisors (see below), whose sum is σ = 52097760. Its totient is φ = 6839040.

The previous prime is 20678083. The next prime is 20678089. The reversal of 20678088 is 88087602.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (20678083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145 + ... + 6432.

It is an arithmetic number, because the mean of its divisors is an integer number (1628055).

Almost surely, 2^20678088 is an apocalyptic number.

It is an amenable number.

20678088 is an abundant number, since it is smaller than the sum of its proper divisors (31419672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20678088 is a wasteful number, since it uses less digits than its factorization.

20678088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6717 (or 6713 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 20678088 is about 4547.3165713418. The cubic root of 20678088 is about 274.4754209066.

The spelling of 20678088 in words is "twenty million, six hundred seventy-eight thousand, eighty-eight".