18029245 has 8 divisors (see below), whose sum is σ = 23299416. Its totient is φ = 13313856.

The previous prime is 18029237. The next prime is 18029251. The reversal of 18029245 is 54292081.

It can be written as a sum of positive squares in 4 ways, for example, as 2748964 + 15280281 = 1658^2 + 3909^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 18029245 - 2³ = 18029237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 138622 + ... + 138751.

It is an arithmetic number, because the mean of its divisors is an integer number (2912427).

Almost surely, 2^18029245 is an apocalyptic number.

It is an amenable number.

18029245 is a deficient number, since it is larger than the sum of its proper divisors (5270171).

18029245 is a wasteful number, since it uses less digits than its factorization.

18029245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277391.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 18029245 is about 4246.0858446339. The cubic root of 18029245 is about 262.2159951826.

The spelling of 18029245 in words is "eighteen million, twenty-nine thousand, two hundred forty-five".