20470608 has 30 divisors (see below), whose sum is σ = 57289674. Its totient is φ = 6823488.

The previous prime is 20470573. The next prime is 20470627. The reversal of 20470608 is 80607402.

It can be written as a sum of positive squares in only one way, i.e., 10810944 + 9659664 = 3288^2 + 3108^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70935 + ... + 71222.

Almost surely, 2^20470608 is an apocalyptic number.

It is an amenable number.

20470608 is an abundant number, since it is smaller than the sum of its proper divisors (36819066).

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

20470608 is a wasteful number, since it uses less digits than its factorization.

20470608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142171 (or 142162 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 20470608 is about 4524.4456013969. The cubic root of 20470608 is about 273.5543219117.

The spelling of 20470608 in words is "twenty million, four hundred seventy thousand, six hundred eight".