18349934 has 16 divisors (see below), whose sum is σ = 29057280. Its totient is φ = 8667000.

The previous prime is 18349927. The next prime is 18349939. The reversal of 18349934 is 43994381.

It is a junction number, because it is equal to n+sod(n) for n = 18349891 and 18349900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18349939) 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, 24059 + ... + 24809.

It is an arithmetic number, because the mean of its divisors is an integer number (1816080).

Almost surely, 2^18349934 is an apocalyptic number.

18349934 is a deficient number, since it is larger than the sum of its proper divisors (10707346).

18349934 is a wasteful number, since it uses less digits than its factorization.

18349934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415.

The product of its digits is 93312, while the sum is 41.

The square root of 18349934 is about 4283.6822944752. The cubic root of 18349934 is about 263.7615596560.

The spelling of 18349934 in words is "eighteen million, three hundred forty-nine thousand, nine hundred thirty-four".