216050240 has 56 divisors (see below), whose sum is σ = 587971392. Its totient is φ = 74073600.

The previous prime is 216050239. The next prime is 216050243. The reversal of 216050240 is 42050612.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (216050243) 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, 45986 + ... + 50465.

Almost surely, 2^216050240 is an apocalyptic number.

216050240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216050240 is an abundant number, since it is smaller than the sum of its proper divisors (371921152).

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

216050240 is an equidigital number, since it uses as much as digits as its factorization.

216050240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96475 (or 96465 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 216050240 is about 14698.6475568332. The cubic root of 216050240 is about 600.0465149124.

The spelling of 216050240 in words is "two hundred sixteen million, fifty thousand, two hundred forty".