4381972 has 36 divisors (see below), whose sum is σ = 9065280. Its totient is φ = 1847664.

The previous prime is 4381967. The next prime is 4381973. The reversal of 4381972 is 2791834.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4381973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15343 + ... + 15625.

Almost surely, 2^4381972 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 4381972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4532640).

4381972 is an abundant number, since it is smaller than the sum of its proper divisors (4683308).

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

4381972 is a wasteful number, since it uses less digits than its factorization.

4381972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 371 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 4381972 is about 2093.3160296525. The cubic root of 4381972 is about 163.6401489210.

The spelling of 4381972 in words is "four million, three hundred eighty-one thousand, nine hundred seventy-two".