72073322 has 12 divisors (see below), whose sum is σ = 110196870. Its totient is φ = 35353968.

The previous prime is 72073303. The next prime is 72073349. The reversal of 72073322 is 22337027.

It can be written as a sum of positive squares in 3 ways, for example, as 72063121 + 10201 = 8489^2 + 101^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72073291 and 72073300.

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 5 ways as a sum of consecutive naturals, for example, 797 + ... + 12032.

Almost surely, 2^72073322 is an apocalyptic number.

72073322 is a deficient number, since it is larger than the sum of its proper divisors (38123548).

72073322 is a wasteful number, since it uses less digits than its factorization.

72073322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12937 (or 12884 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 72073322 is about 8489.6008151149. The cubic root of 72073322 is about 416.1579351319.

The spelling of 72073322 in words is "seventy-two million, seventy-three thousand, three hundred twenty-two".