18034425 has 18 divisors (see below), whose sum is σ = 32302062. Its totient is φ = 9618240.

The previous prime is 18034421. The next prime is 18034427. The reversal of 18034425 is 52443081.

It can be written as a sum of positive squares in 3 ways, for example, as 6007401 + 12027024 = 2451^2 + 3468^2 .

It is not a de Polignac number, because 18034425 - 2² = 18034421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18034421) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 39852 + ... + 40301.

It is an arithmetic number, because the mean of its divisors is an integer number (1794559).

Almost surely, 2^18034425 is an apocalyptic number.

18034425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18034425 is a deficient number, since it is larger than the sum of its proper divisors (14267637).

18034425 is a wasteful number, since it uses less digits than its factorization.

18034425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80169 (or 80161 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 18034425 is about 4246.6957743639. The cubic root of 18034425 is about 262.2411052892.

The spelling of 18034425 in words is "eighteen million, thirty-four thousand, four hundred twenty-five".