18953030 has 16 divisors (see below), whose sum is σ = 34448544. Its totient is φ = 7507200.

The previous prime is 18953023. The next prime is 18953041. The reversal of 18953030 is 3035981.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18952984 and 18953002.

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, 8171 + ... + 10230.

It is an arithmetic number, because the mean of its divisors is an integer number (2153034).

Almost surely, 2^18953030 is an apocalyptic number.

18953030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18953030 is a deficient number, since it is larger than the sum of its proper divisors (15495514).

18953030 is a wasteful number, since it uses less digits than its factorization.

18953030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18511.

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

The square root of 18953030 is about 4353.5077810887. The cubic root of 18953030 is about 266.6200977708.

The spelling of 18953030 in words is "eighteen million, nine hundred fifty-three thousand, thirty".