72265619 has 8 divisors (see below), whose sum is σ = 75863040. Its totient is φ = 68747400.

The previous prime is 72265579. The next prime is 72265621. The reversal of 72265619 is 91656227.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72265619 is a prime.

It is a super-2 number, since 2×72265619² = 10444639378906322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72265019) 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, 17927 + ... + 21584.

It is an arithmetic number, because the mean of its divisors is an integer number (9482880).

Almost surely, 2^72265619 is an apocalyptic number.

72265619 is a deficient number, since it is larger than the sum of its proper divisors (3597421).

72265619 is a wasteful number, since it uses less digits than its factorization.

72265619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39601.

The product of its digits is 45360, while the sum is 38.

The square root of 72265619 is about 8500.9187150566. The cubic root of 72265619 is about 416.5277199281.

The spelling of 72265619 in words is "seventy-two million, two hundred sixty-five thousand, six hundred nineteen".