72005234 has 32 divisors (see below), whose sum is σ = 132088320. Its totient is φ = 28735488.

The previous prime is 72005233. The next prime is 72005237. The reversal of 72005234 is 43250027.

It is not an unprimeable number, because it can be changed into a prime (72005233) 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 15 ways as a sum of consecutive naturals, for example, 21527 + ... + 24645.

It is an arithmetic number, because the mean of its divisors is an integer number (4127760).

Almost surely, 2^72005234 is an apocalyptic number.

72005234 is a deficient number, since it is larger than the sum of its proper divisors (60083086).

72005234 is a wasteful number, since it uses less digits than its factorization.

72005234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 72005234 is about 8485.5897850415. The cubic root of 72005234 is about 416.0268450686.

The spelling of 72005234 in words is "seventy-two million, five thousand, two hundred thirty-four".