216241415 has 12 divisors (see below), whose sum is σ = 280986984. Its totient is φ = 159685344.

The previous prime is 216241409. The next prime is 216241427. The reversal of 216241415 is 514142612.

216241415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216241415 - 2⁸ = 216241159 is a prime.

It is a super-2 number, since 2×216241415² = 93520699122404450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127109 + ... + 128798.

It is an arithmetic number, because the mean of its divisors is an integer number (23415582).

Almost surely, 2^216241415 is an apocalyptic number.

216241415 is a deficient number, since it is larger than the sum of its proper divisors (64745569).

216241415 is a wasteful number, since it uses less digits than its factorization.

216241415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255938 (or 255925 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 216241415 is about 14705.1492681985. The cubic root of 216241415 is about 600.2234491812.

The spelling of 216241415 in words is "two hundred sixteen million, two hundred forty-one thousand, four hundred fifteen".