11223890 has 8 divisors (see below), whose sum is σ = 20203020. Its totient is φ = 4489552.

The previous prime is 11223887. The next prime is 11223923. The reversal of 11223890 is 9832211.

It can be written as a sum of positive squares in 2 ways, for example, as 10426441 + 797449 = 3229^2 + 893^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561185 + ... + 561204.

Almost surely, 2^11223890 is an apocalyptic number.

11223890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11223890 is a deficient number, since it is larger than the sum of its proper divisors (8979130).

11223890 is a wasteful number, since it uses less digits than its factorization.

11223890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122396.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 11223890 is about 3350.2074562630. The cubic root of 11223890 is about 223.8967556733.

The spelling of 11223890 in words is "eleven million, two hundred twenty-three thousand, eight hundred ninety".