4389972 has 24 divisors (see below), whose sum is σ = 10574592. Its totient is φ = 1416000.

The previous prime is 4389971. The next prime is 4389977. The reversal of 4389972 is 2799834.

It is a d-powerful number, because it can be written as 4⁴ + 3¹¹ + 8⁷ + 9³ + 9³ + 7⁵ + 2²¹ .

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4389971) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5529 + ... + 6272.

It is an arithmetic number, because the mean of its divisors is an integer number (440608).

Almost surely, 2^4389972 is an apocalyptic number.

It is an amenable number.

4389972 is an abundant number, since it is smaller than the sum of its proper divisors (6184620).

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

4389972 is a wasteful number, since it uses less digits than its factorization.

4389972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11839 (or 11837 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 4389972 is about 2095.2260021296. The cubic root of 4389972 is about 163.7396722504.

The spelling of 4389972 in words is "four million, three hundred eighty-nine thousand, nine hundred seventy-two".