18507034 has 32 divisors (see below), whose sum is σ = 34747776. Its totient is φ = 7197120.

The previous prime is 18507011. The next prime is 18507037. The reversal of 18507034 is 43070581.

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 = 18506993 and 18507011.

It is not an unprimeable number, because it can be changed into a prime (18507037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10269 + ... + 11935.

It is an arithmetic number, because the mean of its divisors is an integer number (1085868).

Almost surely, 2^18507034 is an apocalyptic number.

18507034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18507034 is a deficient number, since it is larger than the sum of its proper divisors (16240742).

18507034 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (18507033) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1750).

18507034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 18507034 is about 4301.9802417027. The cubic root of 18507034 is about 264.5121390745.

The spelling of 18507034 in words is "eighteen million, five hundred seven thousand, thirty-four".