242552856 has 96 divisors (see below), whose sum is σ = 750504960. Its totient is φ = 63962496.

The previous prime is 242552837. The next prime is 242552861. The reversal of 242552856 is 658255242.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24121 + ... + 32663.

It is an arithmetic number, because the mean of its divisors is an integer number (7817760).

Almost surely, 2^242552856 is an apocalyptic number.

242552856 is a gapful number since it is divisible by the number (26) 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 242552856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375252480).

242552856 is an abundant number, since it is smaller than the sum of its proper divisors (507952104).

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

242552856 is a wasteful number, since it uses less digits than its factorization.

242552856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8585 (or 8568 counting only the distinct ones).

The product of its digits is 192000, while the sum is 39.

The square root of 242552856 is about 15574.1085138123. The cubic root of 242552856 is about 623.6421559382.

The spelling of 242552856 in words is "two hundred forty-two million, five hundred fifty-two thousand, eight hundred fifty-six".