243786480 has 240 divisors, whose sum is σ = 898371072. Its totient is φ = 53568000.

The previous prime is 243786467. The next prime is 243786497. The reversal of 243786480 is 84687342.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1614405 + ... + 1614555.

Almost surely, 2^243786480 is an apocalyptic number.

243786480 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 243786480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449185536).

243786480 is an abundant number, since it is smaller than the sum of its proper divisors (654584592).

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

243786480 is a wasteful number, since it uses less digits than its factorization.

243786480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 243786480 is about 15613.6632472972. The cubic root of 243786480 is about 624.6976500254.

The spelling of 243786480 in words is "two hundred forty-three million, seven hundred eighty-six thousand, four hundred eighty".