243917442804 has 36 divisors (see below), whose sum is σ = 662061632064. Its totient is φ = 69690697776.

The previous prime is 243917442763. The next prime is 243917442823. The reversal of 243917442804 is 408244719342.

It is a super-2 number, since 2×243917442804² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207412204 + ... + 207413379.

Almost surely, 2^243917442804 is an apocalyptic number.

It is an amenable number.

243917442804 is an abundant number, since it is smaller than the sum of its proper divisors (418144189260).

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

243917442804 is a wasteful number, since it uses less digits than its factorization.

243917442804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414825604 (or 414825595 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 243917442804 in words is "two hundred forty-three billion, nine hundred seventeen million, four hundred forty-two thousand, eight hundred four".