64011272 has 16 divisors (see below), whose sum is σ = 129253740. Its totient is φ = 29543616.

The previous prime is 64011271. The next prime is 64011289. The reversal of 64011272 is 27211046.

It can be written as a sum of positive squares in 2 ways, for example, as 63138916 + 872356 = 7946^2 + 934^2 .

It is not an unprimeable number, because it can be changed into a prime (64011271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307643 + ... + 307850.

Almost surely, 2^64011272 is an apocalyptic number.

It is an amenable number.

64011272 is an abundant number, since it is smaller than the sum of its proper divisors (65242468).

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

64011272 is a wasteful number, since it uses less digits than its factorization.

64011272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615512 (or 615508 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 64011272 is about 8000.7044689827. The cubic root of 64011272 is about 400.0234819548.

It can be divided in two parts, 640112 and 72, that multiplied together give a palindrome (46088064).

The spelling of 64011272 in words is "sixty-four million, eleven thousand, two hundred seventy-two".