242711780 has 48 divisors (see below), whose sum is σ = 523649280. Its totient is φ = 94445568.

The previous prime is 242711731. The next prime is 242711797. The reversal of 242711780 is 87117242.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315236 + ... + 316004.

It is an arithmetic number, because the mean of its divisors is an integer number (10909360).

Almost surely, 2^242711780 is an apocalyptic number.

242711780 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 242711780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261824640).

242711780 is an abundant number, since it is smaller than the sum of its proper divisors (280937500).

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

242711780 is a wasteful number, since it uses less digits than its factorization.

242711780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188 (or 1186 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 242711780 is about 15579.2098644315. The cubic root of 242711780 is about 623.7783325350.

The spelling of 242711780 in words is "two hundred forty-two million, seven hundred eleven thousand, seven hundred eighty".