18223802 has 8 divisors (see below), whose sum is σ = 27799200. Its totient is φ = 8957404.

The previous prime is 18223781. The next prime is 18223817. The reversal of 18223802 is 20832281.

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, 77102 + ... + 77337.

It is an arithmetic number, because the mean of its divisors is an integer number (3474900).

Almost surely, 2^18223802 is an apocalyptic number.

18223802 is a deficient number, since it is larger than the sum of its proper divisors (9575398).

18223802 is a wasteful number, since it uses less digits than its factorization.

18223802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154500.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 18223802 is about 4268.9345274904. The cubic root of 18223802 is about 263.1558301017.

The spelling of 18223802 in words is "eighteen million, two hundred twenty-three thousand, eight hundred two".