4388949 has 12 divisors (see below), whose sum is σ = 6544512. Its totient is φ = 2831400.

The previous prime is 4388911. The next prime is 4388971. The reversal of 4388949 is 9498834.

It is a happy number.

It is not a de Polignac number, because 4388949 - 2⁷ = 4388821 is a prime.

It is a d-powerful number, because it can be written as 4⁷ + 3¹¹ + 8³ + 8³ + 9 + 4¹¹ + 9² .

4388949 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4388749) 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 11 ways as a sum of consecutive naturals, for example, 7587 + ... + 8144.

It is an arithmetic number, because the mean of its divisors is an integer number (545376).

Almost surely, 2^4388949 is an apocalyptic number.

It is an amenable number.

4388949 is a deficient number, since it is larger than the sum of its proper divisors (2155563).

4388949 is a wasteful number, since it uses less digits than its factorization.

4388949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15768 (or 15765 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 4388949 is about 2094.9818614967. The cubic root of 4388949 is about 163.7269524504.

The spelling of 4388949 in words is "four million, three hundred eighty-eight thousand, nine hundred forty-nine".