272864445 has 64 divisors (see below), whose sum is σ = 510105600. Its totient is φ = 121989888.

The previous prime is 272864443. The next prime is 272864483. The reversal of 272864445 is 544468272.

It is a happy number.

It is not a de Polignac number, because 272864445 - 2¹ = 272864443 is a prime.

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 272864397 and 272864406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272864443) 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 63 ways as a sum of consecutive naturals, for example, 1673934 + ... + 1674096.

It is an arithmetic number, because the mean of its divisors is an integer number (7970400).

Almost surely, 2^272864445 is an apocalyptic number.

It is an amenable number.

272864445 is a deficient number, since it is larger than the sum of its proper divisors (237241155).

272864445 is a wasteful number, since it uses less digits than its factorization.

272864445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434.

The product of its digits is 430080, while the sum is 42.

The square root of 272864445 is about 16518.6090516121. The cubic root of 272864445 is about 648.6080231780.

The spelling of 272864445 in words is "two hundred seventy-two million, eight hundred sixty-four thousand, four hundred forty-five".