272773728 has 144 divisors (see below), whose sum is σ = 828172800. Its totient is φ = 84913920.

The previous prime is 272773727. The next prime is 272773729. The reversal of 272773728 is 827377272.

272773728 is a `hidden beast` number, since 2 + 7 + 277 + 372 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (272773727) and next prime (272773729).

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272773727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 431973 + ... + 432603.

It is an arithmetic number, because the mean of its divisors is an integer number (5751200).

Almost surely, 2^272773728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 272773728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414086400).

272773728 is an abundant number, since it is smaller than the sum of its proper divisors (555399072).

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

272773728 is a wasteful number, since it uses less digits than its factorization.

272773728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 734 counting only the distinct ones).

The product of its digits is 460992, while the sum is 45.

The square root of 272773728 is about 16515.8629202352. The cubic root of 272773728 is about 648.5361360842.

The spelling of 272773728 in words is "two hundred seventy-two million, seven hundred seventy-three thousand, seven hundred twenty-eight".