216427448 has 32 divisors (see below), whose sum is σ = 411264000. Its totient is φ = 106767840.

The previous prime is 216427381. The next prime is 216427469. The reversal of 216427448 is 844724612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211883 + ... + 212901.

It is an arithmetic number, because the mean of its divisors is an integer number (12852000).

Almost surely, 2^216427448 is an apocalyptic number.

It is an amenable number.

216427448 is a deficient number, since it is larger than the sum of its proper divisors (194836552).

216427448 is a wasteful number, since it uses less digits than its factorization.

216427448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355 (or 1351 counting only the distinct ones).

The product of its digits is 86016, while the sum is 38.

The square root of 216427448 is about 14711.4733456578. The cubic root of 216427448 is about 600.3955243953.

The spelling of 216427448 in words is "two hundred sixteen million, four hundred twenty-seven thousand, four hundred forty-eight".