4918389 has 32 divisors (see below), whose sum is σ = 8294400. Its totient is φ = 2525952.

The previous prime is 4918387. The next prime is 4918391. The reversal of 4918389 is 9838194.

It is an interprime number because it is at equal distance from previous prime (4918387) and next prime (4918391).

It is not a de Polignac number, because 4918389 - 2¹ = 4918387 is a prime.

4918389 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4918389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4918387) 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, 7912 + ... + 8510.

It is an arithmetic number, because the mean of its divisors is an integer number (259200).

Almost surely, 2^4918389 is an apocalyptic number.

It is an amenable number.

4918389 is a deficient number, since it is larger than the sum of its proper divisors (3376011).

4918389 is a wasteful number, since it uses less digits than its factorization.

4918389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649.

The product of its digits is 62208, while the sum is 42.

The square root of 4918389 is about 2217.7441241045. The cubic root of 4918389 is about 170.0621341503.

The spelling of 4918389 in words is "four million, nine hundred eighteen thousand, three hundred eighty-nine".