72224830 has 16 divisors (see below), whose sum is σ = 135657504. Its totient is φ = 27633760.

The previous prime is 72224827. The next prime is 72224837. The reversal of 72224830 is 3842227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72224837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156781 + ... + 157240.

It is an arithmetic number, because the mean of its divisors is an integer number (8478594).

Almost surely, 2^72224830 is an apocalyptic number.

72224830 is a deficient number, since it is larger than the sum of its proper divisors (63432674).

72224830 is a wasteful number, since it uses less digits than its factorization.

72224830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314051.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 72224830 is about 8498.5192827927. The cubic root of 72224830 is about 416.4493380413.

It can be divided in two parts, 722 and 24830, that added together give a palindrome (25552).

The spelling of 72224830 in words is "seventy-two million, two hundred twenty-four thousand, eight hundred thirty".