18769413 has 16 divisors (see below), whose sum is σ = 27195840. Its totient is φ = 11445504.

The previous prime is 18769393. The next prime is 18769417. The reversal of 18769413 is 31496781.

It is not a de Polignac number, because 18769413 - 2¹⁰ = 18768389 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18769417) 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 15 ways as a sum of consecutive naturals, for example, 2278 + ... + 6536.

It is an arithmetic number, because the mean of its divisors is an integer number (1699740).

Almost surely, 2^18769413 is an apocalyptic number.

18769413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18769413 is a deficient number, since it is larger than the sum of its proper divisors (8426427).

18769413 is a wasteful number, since it uses less digits than its factorization.

18769413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4388.

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

The square root of 18769413 is about 4332.3680591566. The cubic root of 18769413 is about 265.7562968525.

The spelling of 18769413 in words is "eighteen million, seven hundred sixty-nine thousand, four hundred thirteen".