242720304 has 20 divisors (see below), whose sum is σ = 627027576. Its totient is φ = 80906752.

The previous prime is 242720299. The next prime is 242720341. The reversal of 242720304 is 403027242.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2528289 + ... + 2528384.

Almost surely, 2^242720304 is an apocalyptic number.

242720304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

242720304 is an abundant number, since it is smaller than the sum of its proper divisors (384307272).

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

242720304 is a wasteful number, since it uses less digits than its factorization.

242720304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5056684 (or 5056678 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 242720304 is about 15579.4834317445. The cubic root of 242720304 is about 623.7856347822.

Adding to 242720304 its reverse (403027242), we get a palindrome (645747546).

The spelling of 242720304 in words is "two hundred forty-two million, seven hundred twenty thousand, three hundred four".