4388139 has 12 divisors (see below), whose sum is σ = 7244016. Its totient is φ = 2507472.

The previous prime is 4388117. The next prime is 4388171. The reversal of 4388139 is 9318834.

4388139 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4388139 - 2¹² = 4384043 is a prime.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4388179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34764 + ... + 34889.

It is an arithmetic number, because the mean of its divisors is an integer number (603668).

Almost surely, 2^4388139 is an apocalyptic number.

4388139 is a deficient number, since it is larger than the sum of its proper divisors (2855877).

4388139 is a wasteful number, since it uses less digits than its factorization.

4388139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69666 (or 69663 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 4388139 is about 2094.7885334802. The cubic root of 4388139 is about 163.7168796523.

The spelling of 4388139 in words is "four million, three hundred eighty-eight thousand, one hundred thirty-nine".