72868234 has 8 divisors (see below), whose sum is σ = 111968388. Its totient is φ = 35545440.

The previous prime is 72868231. The next prime is 72868261. The reversal of 72868234 is 43286827.

It can be written as a sum of positive squares in 2 ways, for example, as 69639025 + 3229209 = 8345^2 + 1797^2 .

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 (72868231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444237 + ... + 444400.

Almost surely, 2^72868234 is an apocalyptic number.

72868234 is a deficient number, since it is larger than the sum of its proper divisors (39100154).

72868234 is a wasteful number, since it uses less digits than its factorization.

72868234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888680.

The product of its digits is 129024, while the sum is 40.

The square root of 72868234 is about 8536.2892406478. The cubic root of 72868234 is about 417.6823093740.

It can be divided in two parts, 7286823 and 4, that added together give a palindrome (7286827).

The spelling of 72868234 in words is "seventy-two million, eight hundred sixty-eight thousand, two hundred thirty-four".