72214344 has 48 divisors (see below), whose sum is σ = 197035020. Its totient is φ = 23892480.

The previous prime is 72214327. The next prime is 72214361. The reversal of 72214344 is 44341227.

72214344 is a `hidden beast` number, since 7 + 221 + 434 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (72214327) and next prime (72214361).

It can be written as a sum of positive squares in 2 ways, for example, as 64160100 + 8054244 = 8010^2 + 2838^2 .

It is a super-2 number, since 2×72214344² = 10429822958700672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6204 + ... + 13524.

Almost surely, 2^72214344 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 72214344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98517510).

72214344 is an abundant number, since it is smaller than the sum of its proper divisors (124820676).

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

72214344 is a wasteful number, since it uses less digits than its factorization.

72214344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7470 (or 7463 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 72214344 is about 8497.9023293987. The cubic root of 72214344 is about 416.4291829270.

The spelling of 72214344 in words is "seventy-two million, two hundred fourteen thousand, three hundred forty-four".