18234970 has 16 divisors (see below), whose sum is σ = 35348040. Its totient is φ = 6732864.

The previous prime is 18234947. The next prime is 18234971. The reversal of 18234970 is 7943281.

It can be written as a sum of positive squares in 4 ways, for example, as 6145441 + 12089529 = 2479^2 + 3477^2 .

It is not an unprimeable number, because it can be changed into a prime (18234971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70005 + ... + 70264.

Almost surely, 2^18234970 is an apocalyptic number.

18234970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18234970 is a deficient number, since it is larger than the sum of its proper divisors (17113070).

18234970 is a wasteful number, since it uses less digits than its factorization.

18234970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140289.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 18234970 is about 4270.2423818795. The cubic root of 18234970 is about 263.2095752746.

The spelling of 18234970 in words is "eighteen million, two hundred thirty-four thousand, nine hundred seventy".