18955130 has 8 divisors (see below), whose sum is σ = 34119252. Its totient is φ = 7582048.

The previous prime is 18955127. The next prime is 18955163. The reversal of 18955130 is 3155981.

It can be written as a sum of positive squares in 2 ways, for example, as 18671041 + 284089 = 4321^2 + 533^2 .

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947747 + ... + 947766.

Almost surely, 2^18955130 is an apocalyptic number.

18955130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18955130 is a deficient number, since it is larger than the sum of its proper divisors (15164122).

18955130 is a wasteful number, since it uses less digits than its factorization.

18955130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895520.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 18955130 is about 4353.7489592304. The cubic root of 18955130 is about 266.6299445961.

The spelling of 18955130 in words is "eighteen million, nine hundred fifty-five thousand, one hundred thirty".