72215468 has 24 divisors (see below), whose sum is σ = 138671568. Its totient is φ = 32700096.

The previous prime is 72215467. The next prime is 72215489. The reversal of 72215468 is 86451227.

It is not an unprimeable number, because it can be changed into a prime (72215467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10346 + ... + 15857.

It is an arithmetic number, because the mean of its divisors is an integer number (5777982).

Almost surely, 2^72215468 is an apocalyptic number.

It is an amenable number.

72215468 is a deficient number, since it is larger than the sum of its proper divisors (66456100).

72215468 is a wasteful number, since it uses less digits than its factorization.

72215468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26273 (or 26271 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 72215468 is about 8497.9684631093. The cubic root of 72215468 is about 416.4313434580.

The spelling of 72215468 in words is "seventy-two million, two hundred fifteen thousand, four hundred sixty-eight".