72204250 has 16 divisors (see below), whose sum is σ = 135166824. Its totient is φ = 28881600.

The previous prime is 72204247. The next prime is 72204257. The reversal of 72204250 is 5240227.

It can be written as a sum of positive squares in 4 ways, for example, as 43784689 + 28419561 = 6617^2 + 5331^2 .

It is not an unprimeable number, because it can be changed into a prime (72204257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144159 + ... + 144658.

Almost surely, 2^72204250 is an apocalyptic number.

72204250 is a deficient number, since it is larger than the sum of its proper divisors (62962574).

72204250 is a wasteful number, since it uses less digits than its factorization.

72204250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288834 (or 288824 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 72204250 is about 8497.3083973691. The cubic root of 72204250 is about 416.4097794318.

Adding to 72204250 its reverse (5240227), we get a palindrome (77444477).

The spelling of 72204250 in words is "seventy-two million, two hundred four thousand, two hundred fifty".