223838770 has 32 divisors (see below), whose sum is σ = 408066048. Its totient is φ = 88397568.

The previous prime is 223838761. The next prime is 223838773. The reversal of 223838770 is 77838322.

It is a super-2 number, since 2×223838770² = 100207589910225800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (223838773) 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 15 ways as a sum of consecutive naturals, for example, 427729 + ... + 428251.

It is an arithmetic number, because the mean of its divisors is an integer number (12752064).

Almost surely, 2^223838770 is an apocalyptic number.

223838770 is a deficient number, since it is larger than the sum of its proper divisors (184227278).

223838770 is a wasteful number, since it uses less digits than its factorization.

223838770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 223838770 is about 14961.2422612562. The cubic root of 223838770 is about 607.1720483180.

The spelling of 223838770 in words is "two hundred twenty-three million, eight hundred thirty-eight thousand, seven hundred seventy".