72225746 has 8 divisors (see below), whose sum is σ = 110643840. Its totient is φ = 35344468.

The previous prime is 72225743. The next prime is 72225761. The reversal of 72225746 is 64752227.

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

It is not an unprimeable number, because it can be changed into a prime (72225743) 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, 384086 + ... + 384273.

It is an arithmetic number, because the mean of its divisors is an integer number (13830480).

Almost surely, 2^72225746 is an apocalyptic number.

72225746 is a deficient number, since it is larger than the sum of its proper divisors (38418094).

72225746 is a wasteful number, since it uses less digits than its factorization.

72225746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768408.

The product of its digits is 47040, while the sum is 35.

The square root of 72225746 is about 8498.5731743629. The cubic root of 72225746 is about 416.4510985900.

The spelling of 72225746 in words is "seventy-two million, two hundred twenty-five thousand, seven hundred forty-six".