72107270 has 16 divisors (see below), whose sum is σ = 129997008. Its totient is φ = 28797600.

The previous prime is 72107267. The next prime is 72107279. The reversal of 72107270 is 7270127.

It is a super-4 number, since 4×72107270⁴ (a number of 33 digits) contains 4444 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72107279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1445 + ... + 12095.

It is an arithmetic number, because the mean of its divisors is an integer number (8124813).

Almost surely, 2^72107270 is an apocalyptic number.

72107270 is a deficient number, since it is larger than the sum of its proper divisors (57889738).

72107270 is a wasteful number, since it uses less digits than its factorization.

72107270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11335.

The product of its (nonzero) digits is 1372, while the sum is 26.

The square root of 72107270 is about 8491.5999670262. The cubic root of 72107270 is about 416.2232644920.

Adding to 72107270 its reverse (7270127), we get a palindrome (79377397).

The spelling of 72107270 in words is "seventy-two million, one hundred seven thousand, two hundred seventy".