20228064 has 24 divisors (see below), whose sum is σ = 53098920. Its totient is φ = 6742656.

The previous prime is 20228057. The next prime is 20228077. The reversal of 20228064 is 46082202.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (24) 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 (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105259 + ... + 105450.

It is an arithmetic number, because the mean of its divisors is an integer number (2212455).

Almost surely, 2^20228064 is an apocalyptic number.

20228064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20228064 is an abundant number, since it is smaller than the sum of its proper divisors (32870856).

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

20228064 is a wasteful number, since it uses less digits than its factorization.

20228064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210722 (or 210714 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 20228064 is about 4497.5620062429. The cubic root of 20228064 is about 272.4696327297.

The spelling of 20228064 in words is "twenty million, two hundred twenty-eight thousand, sixty-four".