217068404 has 48 divisors (see below), whose sum is σ = 440832000. Its totient is φ = 91609056.

The previous prime is 217068373. The next prime is 217068431. The reversal of 217068404 is 404860712.

217068404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 908117 + ... + 908355.

It is an arithmetic number, because the mean of its divisors is an integer number (9184000).

Almost surely, 2^217068404 is an apocalyptic number.

It is an amenable number.

217068404 is an abundant number, since it is smaller than the sum of its proper divisors (223763596).

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

217068404 is a wasteful number, since it uses less digits than its factorization.

217068404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 217068404 is about 14733.2414627603. The cubic root of 217068404 is about 600.9876363617.

The spelling of 217068404 in words is "two hundred seventeen million, sixty-eight thousand, four hundred four".