20256476 has 6 divisors (see below), whose sum is σ = 35448840. Its totient is φ = 10128236.

The previous prime is 20256473. The next prime is 20256479. The reversal of 20256476 is 67465202.

It is an interprime number because it is at equal distance from previous prime (20256473) and next prime (20256479).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20256473) 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 as a sum of consecutive naturals, namely, 2532056 + ... + 2532063.

It is an arithmetic number, because the mean of its divisors is an integer number (5908140).

Almost surely, 2^20256476 is an apocalyptic number.

It is an amenable number.

20256476 is a deficient number, since it is larger than the sum of its proper divisors (15192364).

20256476 is a wasteful number, since it uses less digits than its factorization.

20256476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5064123 (or 5064121 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 20256476 is about 4500.7194980358. The cubic root of 20256476 is about 272.5971418106.

The spelling of 20256476 in words is "twenty million, two hundred fifty-six thousand, four hundred seventy-six".