72226748 has 24 divisors (see below), whose sum is σ = 141254064. Its totient is φ = 32028800.

The previous prime is 72226741. The next prime is 72226837. The reversal of 72226748 is 84762227.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72226741) 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, 18215 + ... + 21822.

It is an arithmetic number, because the mean of its divisors is an integer number (5885586).

Almost surely, 2^72226748 is an apocalyptic number.

It is an amenable number.

72226748 is a deficient number, since it is larger than the sum of its proper divisors (69027316).

72226748 is a wasteful number, since it uses less digits than its factorization.

72226748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40093 (or 40091 counting only the distinct ones).

The product of its digits is 75264, while the sum is 38.

The square root of 72226748 is about 8498.6321252305. The cubic root of 72226748 is about 416.4530244133.

The spelling of 72226748 in words is "seventy-two million, two hundred twenty-six thousand, seven hundred forty-eight".