213919408 has 20 divisors (see below), whose sum is σ = 417113680. Its totient is φ = 106277184.

The previous prime is 213919403. The next prime is 213919411. The reversal of 213919408 is 804919312.

213919408 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213919403) 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, 40068 + ... + 45091.

It is an arithmetic number, because the mean of its divisors is an integer number (20855684).

Almost surely, 2^213919408 is an apocalyptic number.

It is an amenable number.

213919408 is a deficient number, since it is larger than the sum of its proper divisors (203194272).

213919408 is a wasteful number, since it uses less digits than its factorization.

213919408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85324 (or 85318 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 213919408 is about 14625.9840010852. The cubic root of 213919408 is about 598.0673071073.

The spelling of 213919408 in words is "two hundred thirteen million, nine hundred nineteen thousand, four hundred eight".