20425174 has 16 divisors (see below), whose sum is σ = 38198016. Its totient is φ = 7957800.

The previous prime is 20425169. The next prime is 20425189. The reversal of 20425174 is 47152402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66162 + ... + 66469.

It is an arithmetic number, because the mean of its divisors is an integer number (2387376).

Almost surely, 2^20425174 is an apocalyptic number.

20425174 is a deficient number, since it is larger than the sum of its proper divisors (17772842).

20425174 is a wasteful number, since it uses less digits than its factorization.

20425174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132651.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 20425174 is about 4519.4218656815. The cubic root of 20425174 is about 273.3517896851.

Adding to 20425174 its reverse (47152402), we get a palindrome (67577576).

The spelling of 20425174 in words is "twenty million, four hundred twenty-five thousand, one hundred seventy-four".