242888520 has 256 divisors, whose sum is σ = 897661440. Its totient is φ = 51314688.

The previous prime is 242888491. The next prime is 242888531. The reversal of 242888520 is 25888242.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1042324 + ... + 1042556.

It is an arithmetic number, because the mean of its divisors is an integer number (3506490).

Almost surely, 2^242888520 is an apocalyptic number.

242888520 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 242888520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448830720).

242888520 is an abundant number, since it is smaller than the sum of its proper divisors (654772920).

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

242888520 is a wasteful number, since it uses less digits than its factorization.

242888520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 39.

The square root of 242888520 is about 15584.8811352541. The cubic root of 242888520 is about 623.9297052636.

The spelling of 242888520 in words is "two hundred forty-two million, eight hundred eighty-eight thousand, five hundred twenty".