213819116 has 12 divisors (see below), whose sum is σ = 427638288. Its totient is φ = 91636752.

The previous prime is 213819107. The next prime is 213819157. The reversal of 213819116 is 611918312.

213819116 is an admirable number.

It is a super-2 number, since 2×213819116² = 91437228734042912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3818171 + ... + 3818226.

It is an arithmetic number, because the mean of its divisors is an integer number (35636524).

Almost surely, 2^213819116 is an apocalyptic number.

It is an amenable number.

213819116 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

213819116 is a wasteful number, since it uses less digits than its factorization.

213819116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7636408 (or 7636406 counting only the distinct ones).

The product of its digits is 2592, while the sum is 32.

The square root of 213819116 is about 14622.5550434936. Note that the first 3 decimals coincide. The cubic root of 213819116 is about 597.9738283793.

The spelling of 213819116 in words is "two hundred thirteen million, eight hundred nineteen thousand, one hundred sixteen".