243373680 has 160 divisors (see below), whose sum is σ = 914584320. Its totient is φ = 58993920.

The previous prime is 243373667. The next prime is 243373693. The reversal of 243373680 is 86373342.

It is an interprime number because it is at equal distance from previous prime (243373667) and next prime (243373693).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18639 + ... + 28881.

It is an arithmetic number, because the mean of its divisors is an integer number (5716152).

Almost surely, 2^243373680 is an apocalyptic number.

243373680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243373680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457292160).

243373680 is an abundant number, since it is smaller than the sum of its proper divisors (671210640).

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

243373680 is a wasteful number, since it uses less digits than its factorization.

243373680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10276 (or 10264 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 243373680 is about 15600.4384553768. The cubic root of 243373680 is about 624.3448537601.

The spelling of 243373680 in words is "two hundred forty-three million, three hundred seventy-three thousand, six hundred eighty".