216526038 has 16 divisors (see below), whose sum is σ = 433556400. Its totient is φ = 72091296.

The previous prime is 216526031. The next prime is 216526069. The reversal of 216526038 is 830625612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216526031) 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, 15313 + ... + 25836.

It is an arithmetic number, because the mean of its divisors is an integer number (27097275).

Almost surely, 2^216526038 is an apocalyptic number.

216526038 is an abundant number, since it is smaller than the sum of its proper divisors (217030362).

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

216526038 is a wasteful number, since it uses less digits than its factorization.

216526038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42031.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 216526038 is about 14714.8237502187. The cubic root of 216526038 is about 600.4866773574.

It can be divided in two parts, 2165 and 26038, that added together give a triangular number (28203 = T₂₃₇).

The spelling of 216526038 in words is "two hundred sixteen million, five hundred twenty-six thousand, thirty-eight".