18965485 has 16 divisors (see below), whose sum is σ = 28374912. Its totient is φ = 11822400.

The previous prime is 18965461. The next prime is 18965503. The reversal of 18965485 is 58456981.

It is not a de Polignac number, because 18965485 - 2⁷ = 18965357 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 15 ways as a sum of consecutive naturals, for example, 24246 + ... + 25015.

It is an arithmetic number, because the mean of its divisors is an integer number (1773432).

Almost surely, 2^18965485 is an apocalyptic number.

It is an amenable number.

18965485 is a deficient number, since it is larger than the sum of its proper divisors (9409427).

18965485 is a wasteful number, since it uses less digits than its factorization.

18965485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49284.

The product of its digits is 345600, while the sum is 46.

The square root of 18965485 is about 4354.9380018549. The cubic root of 18965485 is about 266.6784881912.

It can be divided in two parts, 1896 and 5485, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 18965485 in words is "eighteen million, nine hundred sixty-five thousand, four hundred eighty-five".