242915380 has 96 divisors (see below), whose sum is σ = 587381760. Its totient is φ = 83773440.

The previous prime is 242915369. The next prime is 242915383. The reversal of 242915380 is 83519242.

242915380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242915383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199654 + ... + 200866.

It is an arithmetic number, because the mean of its divisors is an integer number (6118560).

Almost surely, 2^242915380 is an apocalyptic number.

242915380 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 242915380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293690880).

242915380 is an abundant number, since it is smaller than the sum of its proper divisors (344466380).

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

242915380 is a wasteful number, since it uses less digits than its factorization.

242915380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 242915380 is about 15585.7428440225. The cubic root of 242915380 is about 623.9527036528.

The spelling of 242915380 in words is "two hundred forty-two million, nine hundred fifteen thousand, three hundred eighty".