72540335 has 12 divisors (see below), whose sum is σ = 101260728. Its totient is φ = 49741776.

The previous prime is 72540301. The next prime is 72540337. The reversal of 72540335 is 53304527.

It is not a de Polignac number, because 72540335 - 2⁸ = 72540079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72540298 and 72540307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72540337) 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 11 ways as a sum of consecutive naturals, for example, 147797 + ... + 148286.

It is an arithmetic number, because the mean of its divisors is an integer number (8438394).

Almost surely, 2^72540335 is an apocalyptic number.

72540335 is a deficient number, since it is larger than the sum of its proper divisors (28720393).

72540335 is a wasteful number, since it uses less digits than its factorization.

72540335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296102 (or 296095 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 72540335 is about 8517.0614063772. The cubic root of 72540335 is about 417.0548592012.

The spelling of 72540335 in words is "seventy-two million, five hundred forty thousand, three hundred thirty-five".