243264217372 has 24 divisors (see below), whose sum is σ = 464431614192. Its totient is φ = 110570332800.

The previous prime is 243264217363. The next prime is 243264217373. The reversal of 243264217372 is 273712462342.

It is a super-2 number, since 2×243264217372² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243264217373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216222 + ... + 1402042.

It is an arithmetic number, because the mean of its divisors is an integer number (19351317258).

Almost surely, 2^243264217372 is an apocalyptic number.

243264217372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243264217372 is a deficient number, since it is larger than the sum of its proper divisors (221167396820).

243264217372 is a wasteful number, since it uses less digits than its factorization.

243264217372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215589 (or 215587 counting only the distinct ones).

The product of its digits is 677376, while the sum is 43.

The spelling of 243264217372 in words is "two hundred forty-three billion, two hundred sixty-four million, two hundred seventeen thousand, three hundred seventy-two".