18953230 has 16 divisors (see below), whose sum is σ = 34167744. Its totient is φ = 7569760.

The previous prime is 18953227. The next prime is 18953243. The reversal of 18953230 is 3235981.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18953192 and 18953201.

It is a congruent number.

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, 9195 + ... + 11065.

It is an arithmetic number, because the mean of its divisors is an integer number (2135484).

Almost surely, 2^18953230 is an apocalyptic number.

18953230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18953230 is a deficient number, since it is larger than the sum of its proper divisors (15214514).

18953230 is a wasteful number, since it uses less digits than its factorization.

18953230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 18953230 is about 4353.5307510112. The cubic root of 18953230 is about 266.6210355950.

The spelling of 18953230 in words is "eighteen million, nine hundred fifty-three thousand, two hundred thirty".