272445649 has 16 divisors (see below), whose sum is σ = 325405440. Its totient is φ = 223027200.

The previous prime is 272445631. The next prime is 272445659. The reversal of 272445649 is 946544272.

It is a cyclic number.

It is not a de Polignac number, because 272445649 - 2⁹ = 272445137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272445659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192657 + ... + 194065.

It is an arithmetic number, because the mean of its divisors is an integer number (20337840).

Almost surely, 2^272445649 is an apocalyptic number.

It is an amenable number.

272445649 is a deficient number, since it is larger than the sum of its proper divisors (52959791).

272445649 is a wasteful number, since it uses less digits than its factorization.

272445649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640.

The product of its digits is 483840, while the sum is 43.

The square root of 272445649 is about 16505.9276928018. The cubic root of 272445649 is about 648.2760225104.

The spelling of 272445649 in words is "two hundred seventy-two million, four hundred forty-five thousand, six hundred forty-nine".