18290430249 has 64 divisors (see below), whose sum is σ = 31704465408. Its totient is φ = 9119174400.

The previous prime is 18290430233. The next prime is 18290430293. The reversal of 18290430249 is 94203409281.

It is not a de Polignac number, because 18290430249 - 2⁴ = 18290430233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18290430249.

It is not an unprimeable number, because it can be changed into a prime (18290430209) 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 63 ways as a sum of consecutive naturals, for example, 338779 + ... + 389039.

It is an arithmetic number, because the mean of its divisors is an integer number (495382272).

Almost surely, 2^18290430249 is an apocalyptic number.

It is an amenable number.

18290430249 is a deficient number, since it is larger than the sum of its proper divisors (13414035159).

18290430249 is a wasteful number, since it uses less digits than its factorization.

18290430249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50358.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 18290430249 in words is "eighteen billion, two hundred ninety million, four hundred thirty thousand, two hundred forty-nine".