2216408 has 8 divisors (see below), whose sum is σ = 4155780. Its totient is φ = 1108200.

The previous prime is 2216399. The next prime is 2216413. The reversal of 2216408 is 8046122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138518 + ... + 138533.

2^2216408 is an apocalyptic number.

It is an amenable number.

2216408 is a deficient number, since it is larger than the sum of its proper divisors (1939372).

2216408 is a wasteful number, since it uses less digits than its factorization.

2216408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277057 (or 277053 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2216408 is about 1488.7605583169. The cubic root of 2216408 is about 130.3816790851.

The spelling of 2216408 in words is "two million, two hundred sixteen thousand, four hundred eight".