72249726 has 8 divisors (see below), whose sum is σ = 144499464. Its totient is φ = 24083240.

The previous prime is 72249719. The next prime is 72249733. The reversal of 72249726 is 62794227.

It is an interprime number because it is at equal distance from previous prime (72249719) and next prime (72249733).

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

72249726 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6020805 + ... + 6020816.

It is an arithmetic number, because the mean of its divisors is an integer number (18062433).

Almost surely, 2^72249726 is an apocalyptic number.

72249726 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72249726 is a wasteful number, since it uses less digits than its factorization.

72249726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12041626.

The product of its digits is 84672, while the sum is 39.

The square root of 72249726 is about 8499.9838823377. The cubic root of 72249726 is about 416.4971827676.

The spelling of 72249726 in words is "seventy-two million, two hundred forty-nine thousand, seven hundred twenty-six".