272206428 has 48 divisors (see below), whose sum is σ = 687626016. Its totient is φ = 83312640.

The previous prime is 272206423. The next prime is 272206439. The reversal of 272206428 is 824602272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272206423) 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, 25588 + ... + 34628.

It is an arithmetic number, because the mean of its divisors is an integer number (14325542).

Almost surely, 2^272206428 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 272206428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343813008).

272206428 is an abundant number, since it is smaller than the sum of its proper divisors (415419588).

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

272206428 is a wasteful number, since it uses less digits than its factorization.

272206428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9254 (or 9252 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 272206428 is about 16498.6795835303. The cubic root of 272206428 is about 648.0862272848.

The spelling of 272206428 in words is "two hundred seventy-two million, two hundred six thousand, four hundred twenty-eight".