217434400404 has 48 divisors (see below), whose sum is σ = 546425539968. Its totient is φ = 66896535168.

The previous prime is 217434400369. The next prime is 217434400481. The reversal of 217434400404 is 404004434712.

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, 1737754 + ... + 1858670.

It is an arithmetic number, because the mean of its divisors is an integer number (11383865416).

Almost surely, 2^217434400404 is an apocalyptic number.

It is an amenable number.

217434400404 is an abundant number, since it is smaller than the sum of its proper divisors (328991139564).

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

217434400404 is a wasteful number, since it uses less digits than its factorization.

217434400404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132464 (or 132462 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 33.

The spelling of 217434400404 in words is "two hundred seventeen billion, four hundred thirty-four million, four hundred thousand, four hundred four".