18306034 has 16 divisors (see below), whose sum is σ = 27998208. Its totient is φ = 8975232.

The previous prime is 18306017. The next prime is 18306037. The reversal of 18306034 is 43060381.

It is a super-2 number, since 2×18306034² = 670221761618312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18306037) 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, 24267 + ... + 25009.

It is an arithmetic number, because the mean of its divisors is an integer number (1749888).

Almost surely, 2^18306034 is an apocalyptic number.

18306034 is a deficient number, since it is larger than the sum of its proper divisors (9692174).

18306034 is a wasteful number, since it uses less digits than its factorization.

18306034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 18306034 is about 4278.5551299475. Note that the first 3 decimals coincide. The cubic root of 18306034 is about 263.5510524746.

The spelling of 18306034 in words is "eighteen million, three hundred six thousand, thirty-four".