72307260 has 36 divisors (see below), whose sum is σ = 219332568. Its totient is φ = 19281888.

The previous prime is 72307241. The next prime is 72307297. The reversal of 72307260 is 6270327.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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, 200674 + ... + 201033.

Almost surely, 2^72307260 is an apocalyptic number.

It is an amenable number.

72307260 is an abundant number, since it is smaller than the sum of its proper divisors (147025308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72307260 is a wasteful number, since it uses less digits than its factorization.

72307260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401722 (or 401717 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 72307260 is about 8503.3675682050. The cubic root of 72307260 is about 416.6077086357.

Adding to 72307260 its reverse (6270327), we get a palindrome (78577587).

The spelling of 72307260 in words is "seventy-two million, three hundred seven thousand, two hundred sixty".