72229619 has 24 divisors (see below), whose sum is σ = 92504160. Its totient is φ = 55186560.

The previous prime is 72229609. The next prime is 72229627. The reversal of 72229619 is 91692227.

It is not a de Polignac number, because 72229619 - 2⁴ = 72229603 is a prime.

It is a super-2 number, since 2×72229619² = 10434235721770322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72229609) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 44087 + ... + 45695.

It is an arithmetic number, because the mean of its divisors is an integer number (3854340).

Almost surely, 2^72229619 is an apocalyptic number.

72229619 is a deficient number, since it is larger than the sum of its proper divisors (20274541).

72229619 is a wasteful number, since it uses less digits than its factorization.

72229619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691 (or 1680 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The square root of 72229619 is about 8498.8010330870. The cubic root of 72229619 is about 416.4585423173.

The spelling of 72229619 in words is "seventy-two million, two hundred twenty-nine thousand, six hundred nineteen".