18350330 has 16 divisors (see below), whose sum is σ = 34170120. Its totient is φ = 7086912.

The previous prime is 18350291. The next prime is 18350341. The reversal of 18350330 is 3305381.

It can be written as a sum of positive squares in 4 ways, for example, as 9284209 + 9066121 = 3047^2 + 3011^2 .

It is a super-2 number, since 2×18350330² = 673469222217800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18350296 and 18350305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31349 + ... + 31928.

Almost surely, 2^18350330 is an apocalyptic number.

18350330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18350330 is a deficient number, since it is larger than the sum of its proper divisors (15819790).

18350330 is a wasteful number, since it uses less digits than its factorization.

18350330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63313.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 18350330 is about 4283.7285161410. The cubic root of 18350330 is about 263.7634570075.

The spelling of 18350330 in words is "eighteen million, three hundred fifty thousand, three hundred thirty".