4388739 has 8 divisors (see below), whose sum is σ = 5898240. Its totient is φ = 2902536.

The previous prime is 4388731. The next prime is 4388743. The reversal of 4388739 is 9378834.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4388739 - 2³ = 4388731 is a prime.

It is a super-2 number, since 2×4388739² = 38522060020242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4388739.

It is not an unprimeable number, because it can be changed into a prime (4388731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5379 + ... + 6140.

It is an arithmetic number, because the mean of its divisors is an integer number (737280).

Almost surely, 2^4388739 is an apocalyptic number.

4388739 is a deficient number, since it is larger than the sum of its proper divisors (1509501).

4388739 is a wasteful number, since it uses less digits than its factorization.

4388739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11649.

The product of its digits is 145152, while the sum is 42.

The square root of 4388739 is about 2094.9317411314. The cubic root of 4388739 is about 163.7243411032.

The spelling of 4388739 in words is "four million, three hundred eighty-eight thousand, seven hundred thirty-nine".