216140896 has 24 divisors (see below), whose sum is σ = 429438240. Its totient is φ = 107077248.

The previous prime is 216140891. The next prime is 216140923. The reversal of 216140896 is 698041612.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216140891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27496 + ... + 34471.

It is an arithmetic number, because the mean of its divisors is an integer number (17893260).

Almost surely, 2^216140896 is an apocalyptic number.

It is an amenable number.

216140896 is a deficient number, since it is larger than the sum of its proper divisors (213297344).

216140896 is a wasteful number, since it uses less digits than its factorization.

216140896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62086 (or 62078 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 216140896 is about 14701.7310545391. The cubic root of 216140896 is about 600.1304309035.

The spelling of 216140896 in words is "two hundred sixteen million, one hundred forty thousand, eight hundred ninety-six".