223970990 has 32 divisors (see below), whose sum is σ = 416556000. Its totient is φ = 86638464.

The previous prime is 223970983. The next prime is 223971023. The reversal of 223970990 is 99079322.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62261 + ... + 65759.

It is an arithmetic number, because the mean of its divisors is an integer number (13017375).

Almost surely, 2^223970990 is an apocalyptic number.

223970990 is a deficient number, since it is larger than the sum of its proper divisors (192585010).

223970990 is a wasteful number, since it uses less digits than its factorization.

223970990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 223970990 is about 14965.6603596367. The cubic root of 223970990 is about 607.2915755510.

The spelling of 223970990 in words is "two hundred twenty-three million, nine hundred seventy thousand, nine hundred ninety".