4389742 has 8 divisors (see below), whose sum is σ = 7525296. Its totient is φ = 1881312.

The previous prime is 4389731. The next prime is 4389769. The reversal of 4389742 is 2479834.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156763 + ... + 156790.

It is an arithmetic number, because the mean of its divisors is an integer number (940662).

Almost surely, 2^4389742 is an apocalyptic number.

4389742 is a deficient number, since it is larger than the sum of its proper divisors (3135554).

4389742 is a wasteful number, since it uses less digits than its factorization.

4389742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313562.

The product of its digits is 48384, while the sum is 37.

The square root of 4389742 is about 2095.1711147303. The cubic root of 4389742 is about 163.7368126435.

It can be divided in two parts, 438974 and 2, that added together give a cube (438976 = 76³).

The spelling of 4389742 in words is "four million, three hundred eighty-nine thousand, seven hundred forty-two".