242817880 has 16 divisors (see below), whose sum is σ = 546340320. Its totient is φ = 97127136.

The previous prime is 242817871. The next prime is 242817889. The reversal of 242817880 is 88718242.

It is an interprime number because it is at equal distance from previous prime (242817871) and next prime (242817889).

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 6070447 = 242817880 / (2 + 4 + 2 + 8 + 1 + 7 + 8 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242817889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3035184 + ... + 3035263.

It is an arithmetic number, because the mean of its divisors is an integer number (34146270).

Almost surely, 2^242817880 is an apocalyptic number.

242817880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242817880 is an abundant number, since it is smaller than the sum of its proper divisors (303522440).

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

242817880 is a wasteful number, since it uses less digits than its factorization.

242817880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6070458 (or 6070454 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 242817880 is about 15582.6146714857. The cubic root of 242817880 is about 623.8692129469.

The spelling of 242817880 in words is "two hundred forty-two million, eight hundred seventeen thousand, eight hundred eighty".