18943034 has 12 divisors (see below), whose sum is σ = 31232922. Its totient is φ = 8610360.

The previous prime is 18942997. The next prime is 18943037. The reversal of 18943034 is 43034981.

It can be written as a sum of positive squares in only one way, i.e., 18879025 + 64009 = 4345^2 + 253^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (18943037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38897 + ... + 39380.

Almost surely, 2^18943034 is an apocalyptic number.

18943034 is a deficient number, since it is larger than the sum of its proper divisors (12289888).

18943034 is a wasteful number, since it uses less digits than its factorization.

18943034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78301 (or 78290 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 18943034 is about 4352.3595899236. The cubic root of 18943034 is about 266.5732169084.

The spelling of 18943034 in words is "eighteen million, nine hundred forty-three thousand, thirty-four".