20425886 has 16 divisors (see below), whose sum is σ = 34431264. Its totient is φ = 9017184.

The previous prime is 20425883. The next prime is 20425897. The reversal of 20425886 is 68852402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20425883) 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, 16481 + ... + 17676.

It is an arithmetic number, because the mean of its divisors is an integer number (2151954).

Almost surely, 2^20425886 is an apocalyptic number.

20425886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20425886 is a deficient number, since it is larger than the sum of its proper divisors (14005378).

20425886 is a wasteful number, since it uses less digits than its factorization.

20425886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34195.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 20425886 is about 4519.5006361323. The cubic root of 20425886 is about 273.3549658997.

The spelling of 20425886 in words is "twenty million, four hundred twenty-five thousand, eight hundred eighty-six".