18246530 has 16 divisors (see below), whose sum is σ = 33082560. Its totient is φ = 7245552.

The previous prime is 18246499. The next prime is 18246533. The reversal of 18246530 is 3564281.

It is a junction number, because it is equal to n+sod(n) for n = 18246493 and 18246502.

It is not an unprimeable number, because it can be changed into a prime (18246533) 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 7 ways as a sum of consecutive naturals, for example, 5174 + ... + 7953.

It is an arithmetic number, because the mean of its divisors is an integer number (2067660).

Almost surely, 2^18246530 is an apocalyptic number.

18246530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18246530 is a deficient number, since it is larger than the sum of its proper divisors (14836030).

18246530 is a wasteful number, since it uses less digits than its factorization.

18246530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13273.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 18246530 is about 4271.5957205709. The cubic root of 18246530 is about 263.2651838104.

The spelling of 18246530 in words is "eighteen million, two hundred forty-six thousand, five hundred thirty".