213605616 has 40 divisors (see below), whose sum is σ = 630646144. Its totient is φ = 61030080.

The previous prime is 213605603. The next prime is 213605621. The reversal of 213605616 is 616506312.

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, 317530 + ... + 318201.

Almost surely, 2^213605616 is an apocalyptic number.

It is an amenable number.

213605616 is an abundant number, since it is smaller than the sum of its proper divisors (417040528).

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

213605616 is a wasteful number, since it uses less digits than its factorization.

213605616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635749 (or 635743 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 213605616 is about 14615.2528544668. The cubic root of 213605616 is about 597.7747349732.

The spelling of 213605616 in words is "two hundred thirteen million, six hundred five thousand, six hundred sixteen".