243220243464 has 48 divisors (see below), whose sum is σ = 718605267120. Its totient is φ = 73703103840.

The previous prime is 243220243421. The next prime is 243220243507. The reversal of 243220243464 is 464342022342.

243220243464 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (243220243421) and next prime (243220243507).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153547342 + ... + 153548925.

It is an arithmetic number, because the mean of its divisors is an integer number (14970943065).

Almost surely, 2^243220243464 is an apocalyptic number.

243220243464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243220243464 is an abundant number, since it is smaller than the sum of its proper divisors (475385023656).

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

243220243464 is a wasteful number, since it uses less digits than its factorization.

243220243464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307096290 (or 307096283 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

It can be divided in two parts, 243220 and 243464, that added together give a palindrome (486684).

The spelling of 243220243464 in words is "two hundred forty-three billion, two hundred twenty million, two hundred forty-three thousand, four hundred sixty-four".