216265441 has 8 divisors (see below), whose sum is σ = 255683520. Its totient is φ = 178978128.

The previous prime is 216265421. The next prime is 216265451. The reversal of 216265441 is 144562612.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216265441 - 2⁵ = 216265409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216265421) 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, 532471 + ... + 532876.

It is an arithmetic number, because the mean of its divisors is an integer number (31960440).

Almost surely, 2^216265441 is an apocalyptic number.

It is an amenable number.

216265441 is a deficient number, since it is larger than the sum of its proper divisors (39418079).

216265441 is a wasteful number, since it uses less digits than its factorization.

216265441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065383.

The product of its digits is 11520, while the sum is 31.

The square root of 216265441 is about 14705.9661702317. The cubic root of 216265441 is about 600.2456780938.

The spelling of 216265441 in words is "two hundred sixteen million, two hundred sixty-five thousand, four hundred forty-one".