20224836 has 48 divisors (see below), whose sum is σ = 52678080. Its totient is φ = 6710400.

The previous prime is 20224823. The next prime is 20224837. The reversal of 20224836 is 63842202.

It is a hoax number, since the sum of its digits (27) 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 (27).

It is not an unprimeable number, because it can be changed into a prime (20224837) 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 15 ways as a sum of consecutive naturals, for example, 43075 + ... + 43541.

It is an arithmetic number, because the mean of its divisors is an integer number (1097460).

Almost surely, 2^20224836 is an apocalyptic number.

It is an amenable number.

20224836 is an abundant number, since it is smaller than the sum of its proper divisors (32453244).

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

20224836 is a wasteful number, since it uses less digits than its factorization.

20224836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 20224836 is about 4497.2031308359. The cubic root of 20224836 is about 272.4551383658.

The spelling of 20224836 in words is "twenty million, two hundred twenty-four thousand, eight hundred thirty-six".