216715248 has 30 divisors (see below), whose sum is σ = 606502104. Its totient is φ = 72238368.

The previous prime is 216715243. The next prime is 216715259. The reversal of 216715248 is 842517612.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216715243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 752340 + ... + 752627.

Almost surely, 2^216715248 is an apocalyptic number.

It is an amenable number.

216715248 is an abundant number, since it is smaller than the sum of its proper divisors (389786856).

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

216715248 is a wasteful number, since it uses less digits than its factorization.

216715248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504981 (or 1504972 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 216715248 is about 14721.2515772267. The cubic root of 216715248 is about 600.6615370132.

The spelling of 216715248 in words is "two hundred sixteen million, seven hundred fifteen thousand, two hundred forty-eight".