18369741 has 32 divisors (see below), whose sum is σ = 28304640. Its totient is φ = 10497024.

The previous prime is 18369739. The next prime is 18369749. The reversal of 18369741 is 14796381.

It is not a de Polignac number, because 18369741 - 2¹ = 18369739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 18369741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18369749) 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 31 ways as a sum of consecutive naturals, for example, 68155 + ... + 68423.

It is an arithmetic number, because the mean of its divisors is an integer number (884520).

Almost surely, 2^18369741 is an apocalyptic number.

It is an amenable number.

18369741 is a deficient number, since it is larger than the sum of its proper divisors (9934899).

18369741 is a wasteful number, since it uses less digits than its factorization.

18369741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405.

The product of its digits is 36288, while the sum is 39.

The square root of 18369741 is about 4285.9935837563. The cubic root of 18369741 is about 263.8564273290.

It can be divided in two parts, 18369 and 741, that added together give a triangular number (19110 = T₁₉₅).

The spelling of 18369741 in words is "eighteen million, three hundred sixty-nine thousand, seven hundred forty-one".