20224799 has 12 divisors (see below), whose sum is σ = 23660928. Its totient is φ = 17236800.

The previous prime is 20224793. The next prime is 20224801. The reversal of 20224799 is 99742202.

It is a happy number.

It is not a de Polignac number, because 20224799 - 2⁴ = 20224783 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8279 + ... + 10439.

It is an arithmetic number, because the mean of its divisors is an integer number (1971744).

Almost surely, 2^20224799 is an apocalyptic number.

20224799 is a deficient number, since it is larger than the sum of its proper divisors (3436129).

20224799 is a wasteful number, since it uses less digits than its factorization.

20224799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366 (or 2359 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 20224799 is about 4497.1990171661. The cubic root of 20224799 is about 272.4549722194.

The spelling of 20224799 in words is "twenty million, two hundred twenty-four thousand, seven hundred ninety-nine".