242272980 has 72 divisors (see below), whose sum is σ = 739661832. Its totient is φ = 64187136.

The previous prime is 242272963. The next prime is 242272991. The reversal of 242272980 is 89272242.

It is a happy number.

242272980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3755844 + 238517136 = 1938^2 + 15444^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23974 + ... + 32546.

It is an arithmetic number, because the mean of its divisors is an integer number (10273081).

Almost surely, 2^242272980 is an apocalyptic number.

242272980 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 242272980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369830916).

242272980 is an abundant number, since it is smaller than the sum of its proper divisors (497388852).

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

242272980 is a wasteful number, since it uses less digits than its factorization.

242272980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8745 (or 8740 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 242272980 is about 15565.1206227257. The cubic root of 242272980 is about 623.4021949781.

The spelling of 242272980 in words is "two hundred forty-two million, two hundred seventy-two thousand, nine hundred eighty".