18350930 has 16 divisors (see below), whose sum is σ = 35572824. Its totient is φ = 6775680.

The previous prime is 18350921. The next prime is 18350951. The reversal of 18350930 is 3905381.

It can be written as a sum of positive squares in 4 ways, for example, as 5094049 + 13256881 = 2257^2 + 3641^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18350893 and 18350902.

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, 70451 + ... + 70710.

Almost surely, 2^18350930 is an apocalyptic number.

18350930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18350930 is a deficient number, since it is larger than the sum of its proper divisors (17221894).

18350930 is a wasteful number, since it uses less digits than its factorization.

18350930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141181.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 18350930 is about 4283.7985480179. The cubic root of 18350930 is about 263.7663317306.

The spelling of 18350930 in words is "eighteen million, three hundred fifty thousand, nine hundred thirty".