223784966790 has 96 divisors (see below), whose sum is σ = 725412070656. Its totient is φ = 46500770880.

The previous prime is 223784966731. The next prime is 223784966791. The reversal of 223784966790 is 97669487322.

223784966790 is a `hidden beast` number, since 2 + 2 + 3 + 78 + 496 + 6 + 79 + 0 = 666.

223784966790 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×223784966790² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223784966791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16139172 + ... + 16153031.

It is an arithmetic number, because the mean of its divisors is an integer number (7556375736).

Almost surely, 2^223784966790 is an apocalyptic number.

223784966790 is an abundant number, since it is smaller than the sum of its proper divisors (501627103866).

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

223784966790 is a wasteful number, since it uses less digits than its factorization.

223784966790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32292234 (or 32292231 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 63.

The spelling of 223784966790 in words is "two hundred twenty-three billion, seven hundred eighty-four million, nine hundred sixty-six thousand, seven hundred ninety".