72248746 has 8 divisors (see below), whose sum is σ = 108509184. Its totient is φ = 36079020.

The previous prime is 72248723. The next prime is 72248749. The reversal of 72248746 is 64784227.

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

It is a junction number, because it is equal to n+sod(n) for n = 72248699 and 72248708.

It is not an unprimeable number, because it can be changed into a prime (72248749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20650 + ... + 23893.

It is an arithmetic number, because the mean of its divisors is an integer number (13563648).

Almost surely, 2^72248746 is an apocalyptic number.

72248746 is a deficient number, since it is larger than the sum of its proper divisors (36260438).

72248746 is a wasteful number, since it uses less digits than its factorization.

72248746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45356.

The product of its digits is 150528, while the sum is 40.

The square root of 72248746 is about 8499.9262349740. The cubic root of 72248746 is about 416.4952996275.

The spelling of 72248746 in words is "seventy-two million, two hundred forty-eight thousand, seven hundred forty-six".