72034305 has 16 divisors (see below), whose sum is σ = 131720064. Its totient is φ = 32929920.

The previous prime is 72034279. The next prime is 72034327. The reversal of 72034305 is 50343027.

It is not a de Polignac number, because 72034305 - 2⁶ = 72034241 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342916 + ... + 343125.

It is an arithmetic number, because the mean of its divisors is an integer number (8232504).

Almost surely, 2^72034305 is an apocalyptic number.

It is an amenable number.

72034305 is a deficient number, since it is larger than the sum of its proper divisors (59685759).

72034305 is a wasteful number, since it uses less digits than its factorization.

72034305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686056.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 72034305 is about 8487.3025750235. The cubic root of 72034305 is about 416.0828256711.

The spelling of 72034305 in words is "seventy-two million, thirty-four thousand, three hundred five".