19030018 has 16 divisors (see below), whose sum is σ = 33318144. Its totient is φ = 7981920.

The previous prime is 19029979. The next prime is 19030019. The reversal of 19030018 is 81003091.

It is not an unprimeable number, because it can be changed into a prime (19030019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13803 + ... + 15118.

It is an arithmetic number, because the mean of its divisors is an integer number (2082384).

Almost surely, 2^19030018 is an apocalyptic number.

19030018 is a deficient number, since it is larger than the sum of its proper divisors (14288126).

19030018 is a wasteful number, since it uses less digits than its factorization.

19030018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28977.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 19030018 is about 4362.3408853504. The cubic root of 19030018 is about 266.9806173888.

The spelling of 19030018 in words is "nineteen million, thirty thousand, eighteen".