216026624 has 80 divisors (see below), whose sum is σ = 476259696. Its totient is φ = 97884160.

The previous prime is 216026621. The next prime is 216026627. The reversal of 216026624 is 426620612.

It is an interprime number because it is at equal distance from previous prime (216026621) and next prime (216026627).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216026621) 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, 681314 + ... + 681630.

Almost surely, 2^216026624 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 216026624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238129848).

216026624 is an abundant number, since it is smaller than the sum of its proper divisors (260233072).

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

216026624 is an frugal number, since it uses more digits than its factorization.

216026624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 216026624 is about 14697.8441956635. The cubic root of 216026624 is about 600.0246508391.

The spelling of 216026624 in words is "two hundred sixteen million, twenty-six thousand, six hundred twenty-four".