20367828 has 96 divisors (see below), whose sum is σ = 57859200. Its totient is φ = 6158592.

The previous prime is 20367827. The next prime is 20367863. The reversal of 20367828 is 82876302.

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 junction number, because it is equal to n+sod(n) for n = 20367792 and 20367801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20367827) 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 31 ways as a sum of consecutive naturals, for example, 124875 + ... + 125037.

It is an arithmetic number, because the mean of its divisors is an integer number (602700).

Almost surely, 2^20367828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20367828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28929600).

20367828 is an abundant number, since it is smaller than the sum of its proper divisors (37491372).

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

20367828 is a wasteful number, since it uses less digits than its factorization.

20367828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 20367828 is about 4513.0730107101. The cubic root of 20367828 is about 273.0957278105.

The spelling of 20367828 in words is "twenty million, three hundred sixty-seven thousand, eight hundred twenty-eight".