20228702 has 8 divisors (see below), whose sum is σ = 32677176. Its totient is φ = 9336312.

The previous prime is 20228701. The next prime is 20228713. The reversal of 20228702 is 20782202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20228701) 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 3 ways as a sum of consecutive naturals, for example, 388988 + ... + 389039.

It is an arithmetic number, because the mean of its divisors is an integer number (4084647).

Almost surely, 2^20228702 is an apocalyptic number.

20228702 is a deficient number, since it is larger than the sum of its proper divisors (12448474).

20228702 is a wasteful number, since it uses less digits than its factorization.

20228702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778042.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 20228702 is about 4497.6329329993. The cubic root of 20228702 is about 272.4724972945.

The spelling of 20228702 in words is "twenty million, two hundred twenty-eight thousand, seven hundred two".