4381236 has 48 divisors (see below), whose sum is σ = 11491200. Its totient is φ = 1443456.

The previous prime is 4381187. The next prime is 4381249. The reversal of 4381236 is 6321834.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12025 + ... + 12383.

It is an arithmetic number, because the mean of its divisors is an integer number (239400).

Almost surely, 2^4381236 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 4381236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5745600).

4381236 is an abundant number, since it is smaller than the sum of its proper divisors (7109964).

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

4381236 is a wasteful number, since it uses less digits than its factorization.

4381236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 477 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 4381236 is about 2093.1402246386. The cubic root of 4381236 is about 163.6309866920.

The spelling of 4381236 in words is "four million, three hundred eighty-one thousand, two hundred thirty-six".