72214384 has 40 divisors (see below), whose sum is σ = 154811520. Its totient is φ = 32356800.

The previous prime is 72214369. The next prime is 72214403. The reversal of 72214384 is 48341227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9607 + ... + 15385.

It is an arithmetic number, because the mean of its divisors is an integer number (3870288).

Almost surely, 2^72214384 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 72214384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77405760).

72214384 is an abundant number, since it is smaller than the sum of its proper divisors (82597136).

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

72214384 is a wasteful number, since it uses less digits than its factorization.

72214384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5869 (or 5863 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 72214384 is about 8497.9046829204. The cubic root of 72214384 is about 416.4292598146.

It can be divided in two parts, 722143 and 84, that added together give a palindrome (722227).

The spelling of 72214384 in words is "seventy-two million, two hundred fourteen thousand, three hundred eighty-four".