20425896 has 48 divisors (see below), whose sum is σ = 55598400. Its totient is φ = 6774432.

The previous prime is 20425883. The next prime is 20425897. The reversal of 20425896 is 69852402.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20425896.

It is not an unprimeable number, because it can be changed into a prime (20425897) 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 11 ways as a sum of consecutive naturals, for example, 16615 + ... + 17801.

It is an arithmetic number, because the mean of its divisors is an integer number (1158300).

Almost surely, 2^20425896 is an apocalyptic number.

It is an amenable number.

20425896 is an abundant number, since it is smaller than the sum of its proper divisors (35172504).

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

20425896 is a wasteful number, since it uses less digits than its factorization.

20425896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438 (or 1431 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 20425896 is about 4519.5017424491. The cubic root of 20425896 is about 273.3550105090.

It can be divided in two parts, 20425 and 896, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 20425896 in words is "twenty million, four hundred twenty-five thousand, eight hundred ninety-six".