72342726 has 8 divisors (see below), whose sum is σ = 144685464. Its totient is φ = 24114240.

The previous prime is 72342707. The next prime is 72342757. The reversal of 72342726 is 62724327.

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

72342726 is an admirable number.

It is a super-2 number, since 2×72342726² = 10466940010222152, which contains 22 as substring.

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, 6028555 + ... + 6028566.

It is an arithmetic number, because the mean of its divisors is an integer number (18085683).

Almost surely, 2^72342726 is an apocalyptic number.

72342726 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.

72342726 is a wasteful number, since it uses less digits than its factorization.

72342726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12057126.

The product of its digits is 28224, while the sum is 33.

The square root of 72342726 is about 8505.4527216369. The cubic root of 72342726 is about 416.6758114971.

The spelling of 72342726 in words is "seventy-two million, three hundred forty-two thousand, seven hundred twenty-six".