243871452 has 96 divisors (see below), whose sum is σ = 696783360. Its totient is φ = 73146240.

The previous prime is 243871427. The next prime is 243871471. The reversal of 243871452 is 254178342.

It is a happy number.

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, 121368 + ... + 123360.

It is an arithmetic number, because the mean of its divisors is an integer number (7258160).

Almost surely, 2^243871452 is an apocalyptic number.

243871452 is a gapful number since it is divisible by the number (22) 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 243871452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348391680).

243871452 is an abundant number, since it is smaller than the sum of its proper divisors (452911908).

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

243871452 is a wasteful number, since it uses less digits than its factorization.

243871452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120 (or 2112 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 243871452 is about 15616.3840885142. The cubic root of 243871452 is about 624.7702212398.

The spelling of 243871452 in words is "two hundred forty-three million, eight hundred seventy-one thousand, four hundred fifty-two".