217272048 has 40 divisors (see below), whose sum is σ = 641470848. Its totient is φ = 62077632.

The previous prime is 217272047. The next prime is 217272059. The reversal of 217272048 is 840272712.

217272048 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×217272048² = 94414285684228608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217272047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322986 + ... + 323657.

Almost surely, 2^217272048 is an apocalyptic number.

217272048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

217272048 is an abundant number, since it is smaller than the sum of its proper divisors (424198800).

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

217272048 is a wasteful number, since it uses less digits than its factorization.

217272048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646661 (or 646655 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 217272048 is about 14740.1508811816. The cubic root of 217272048 is about 601.1755176486.

The spelling of 217272048 in words is "two hundred seventeen million, two hundred seventy-two thousand, forty-eight".