4378536 has 80 divisors (see below), whose sum is σ = 12741300. Its totient is φ = 1403136.

The previous prime is 4378523. The next prime is 4378541. The reversal of 4378536 is 6358734.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4284900 + 93636 = 2070^2 + 306^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 4⁴ + 3⁸ + 7⁷ + 8³ + 5⁹ + 3¹³ + 6³ .

Its product of digits (60480) is a multiple of the sum of its prime factors (280).

It is a self number, because there is not a number n which added to its sum of digits gives 4378536.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 18676 + ... + 18908.

Almost surely, 2^4378536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4378536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6370650).

4378536 is an abundant number, since it is smaller than the sum of its proper divisors (8362764).

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

4378536 is a wasteful number, since it uses less digits than its factorization.

4378536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 267 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 4378536 is about 2092.4951612847. The cubic root of 4378536 is about 163.5973664647.

The spelling of 4378536 in words is "four million, three hundred seventy-eight thousand, five hundred thirty-six".