18505348 has 24 divisors (see below), whose sum is σ = 33092640. Its totient is φ = 9052800.

The previous prime is 18505307. The next prime is 18505381. The reversal of 18505348 is 84350581.

It is a super-2 number, since 2×18505348² = 684895809202208, which contains 22 as substring.

It is an unprimeable number.

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, 45948 + ... + 46348.

It is an arithmetic number, because the mean of its divisors is an integer number (1378860).

Almost surely, 2^18505348 is an apocalyptic number.

It is an amenable number.

18505348 is a deficient number, since it is larger than the sum of its proper divisors (14587292).

18505348 is a wasteful number, since it uses less digits than its factorization.

18505348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 18505348 is about 4301.7842809699. The cubic root of 18505348 is about 264.5041064348.

The spelling of 18505348 in words is "eighteen million, five hundred five thousand, three hundred forty-eight".