72441000 has 128 divisors (see below), whose sum is σ = 251222400. Its totient is φ = 19310400.

The previous prime is 72440933. The next prime is 72441001. The reversal of 72441000 is 14427.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (72441001) 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 31 ways as a sum of consecutive naturals, for example, 25659 + ... + 28341.

It is an arithmetic number, because the mean of its divisors is an integer number (1962675).

Almost surely, 2^72441000 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 72441000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125611200).

72441000 is an abundant number, since it is smaller than the sum of its proper divisors (178781400).

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

72441000 is a wasteful number, since it uses less digits than its factorization.

72441000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713 (or 2693 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 72441000 is about 8511.2278785144. The cubic root of 72441000 is about 416.8644039229.

Adding to 72441000 its reverse (14427), we get a palindrome (72455427).

The spelling of 72441000 in words is "seventy-two million, four hundred forty-one thousand".