72026216 has 8 divisors (see below), whose sum is σ = 135049170. Its totient is φ = 36013104.

The previous prime is 72026209. The next prime is 72026233. The reversal of 72026216 is 61262027.

It can be written as a sum of positive squares in only one way, i.e., 53963716 + 18062500 = 7346^2 + 4250^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4501631 + ... + 4501646.

Almost surely, 2^72026216 is an apocalyptic number.

It is an amenable number.

72026216 is a deficient number, since it is larger than the sum of its proper divisors (63022954).

72026216 is a wasteful number, since it uses less digits than its factorization.

72026216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9003283 (or 9003279 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 72026216 is about 8486.8260262598. The cubic root of 72026216 is about 416.0672505922.

The spelling of 72026216 in words is "seventy-two million, twenty-six thousand, two hundred sixteen".