18224998 has 8 divisors (see below), whose sum is σ = 29822760. Its totient is φ = 8284080.

The previous prime is 18224959. The next prime is 18225013. The reversal of 18224998 is 89942281.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414183 + ... + 414226.

It is an arithmetic number, because the mean of its divisors is an integer number (3727845).

Almost surely, 2^18224998 is an apocalyptic number.

18224998 is a deficient number, since it is larger than the sum of its proper divisors (11597762).

18224998 is a wasteful number, since it uses less digits than its factorization.

18224998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828422.

The product of its digits is 82944, while the sum is 43.

The square root of 18224998 is about 4269.0746069845. The cubic root of 18224998 is about 263.1615868128.

It can be divided in two parts, 182 and 24998, that multiplied together give a triangular number (4549636 = T₃₀₁₆).

The spelling of 18224998 in words is "eighteen million, two hundred twenty-four thousand, nine hundred ninety-eight".