20356048 has 10 divisors (see below), whose sum is σ = 39439874. Its totient is φ = 10178016.

The previous prime is 20356043. The next prime is 20356051. The reversal of 20356048 is 84065302.

It can be written as a sum of positive squares in only one way, i.e., 11641744 + 8714304 = 3412^2 + 2952^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20356043) 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, 636111 + ... + 636142.

Almost surely, 2^20356048 is an apocalyptic number.

It is an amenable number.

20356048 is a deficient number, since it is larger than the sum of its proper divisors (19083826).

20356048 is a wasteful number, since it uses less digits than its factorization.

20356048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272261 (or 1272255 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20356048 is about 4511.7677245177. The cubic root of 20356048 is about 273.0430681604.

The spelling of 20356048 in words is "twenty million, three hundred fifty-six thousand, forty-eight".