18109034 has 8 divisors (see below), whose sum is σ = 27211140. Its totient is φ = 9038656.

The previous prime is 18109019. The next prime is 18109051. The reversal of 18109034 is 43090181.

It can be written as a sum of positive squares in 2 ways, for example, as 18088009 + 21025 = 4253^2 + 145^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18109034² = 655874224826312, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 18108994 and 18109012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6449 + ... + 8820.

Almost surely, 2^18109034 is an apocalyptic number.

18109034 is a deficient number, since it is larger than the sum of its proper divisors (9102106).

18109034 is a wasteful number, since it uses less digits than its factorization.

18109034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15864.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 18109034 is about 4255.4710667563. The cubic root of 18109034 is about 262.6022410498.

The spelling of 18109034 in words is "eighteen million, one hundred nine thousand, thirty-four".