72223960 has 64 divisors (see below), whose sum is σ = 170190720. Its totient is φ = 27555840.

The previous prime is 72223903. The next prime is 72223999. The reversal of 72223960 is 6932227.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 76612 + ... + 77548.

It is an arithmetic number, because the mean of its divisors is an integer number (2659230).

Almost surely, 2^72223960 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 72223960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85095360).

72223960 is an abundant number, since it is smaller than the sum of its proper divisors (97966760).

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

72223960 is a wasteful number, since it uses less digits than its factorization.

72223960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036 (or 1032 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 72223960 is about 8498.4680972514. The cubic root of 72223960 is about 416.4476658907.

The spelling of 72223960 in words is "seventy-two million, two hundred twenty-three thousand, nine hundred sixty".