20476444 has 12 divisors (see below), whose sum is σ = 36510264. Its totient is φ = 10044944.

The previous prime is 20476441. The next prime is 20476447. The reversal of 20476444 is 44467402.

It is an interprime number because it is at equal distance from previous prime (20476441) and next prime (20476447).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20476441) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 48082 + ... + 48505.

It is an arithmetic number, because the mean of its divisors is an integer number (3042522).

Almost surely, 2^20476444 is an apocalyptic number.

It is an amenable number.

20476444 is a deficient number, since it is larger than the sum of its proper divisors (16033820).

20476444 is a wasteful number, since it uses less digits than its factorization.

20476444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96644 (or 96642 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 20476444 is about 4525.0904963326. The cubic root of 20476444 is about 273.5803154619.

The spelling of 20476444 in words is "twenty million, four hundred seventy-six thousand, four hundred forty-four".