4239378 has 96 divisors (see below), whose sum is σ = 11374272. Its totient is φ = 1166400.

The previous prime is 4239373. The next prime is 4239379. The reversal of 4239378 is 8739324.

It is a d-powerful number, because it can be written as 4⁹ + 2¹⁹ + 3⁶ + 9² + 3¹² + 7⁷ + 8⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4239371) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69468 + ... + 69528.

It is an arithmetic number, because the mean of its divisors is an integer number (118482).

Almost surely, 2^4239378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4239378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5687136).

4239378 is an abundant number, since it is smaller than the sum of its proper divisors (7134894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4239378 is a wasteful number, since it uses less digits than its factorization.

4239378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 90 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 4239378 is about 2058.9749877063. The cubic root of 4239378 is about 161.8455317725.

It can be divided in two parts, 423 and 9378, that added together give a square (9801 = 99²).

The spelling of 4239378 in words is "four million, two hundred thirty-nine thousand, three hundred seventy-eight".