242303240 has 16 divisors (see below), whose sum is σ = 545182380. Its totient is φ = 96921280.

The previous prime is 242303239. The next prime is 242303267. The reversal of 242303240 is 42303242.

It can be written as a sum of positive squares in 2 ways, for example, as 235131556 + 7171684 = 15334^2 + 2678^2 .

It is a super-2 number, since 2×242303240² = 117421720228995200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 3028751 + ... + 3028830.

Almost surely, 2^242303240 is an apocalyptic number.

242303240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242303240 is an abundant number, since it is smaller than the sum of its proper divisors (302879140).

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

242303240 is a wasteful number, since it uses less digits than its factorization.

242303240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6057592 (or 6057588 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 242303240 is about 15566.0926375247. The cubic root of 242303240 is about 623.4281482989.

Adding to 242303240 its reverse (42303242), we get a palindrome (284606482).

It can be divided in two parts, 242303 and 240, that multiplied together give a triangular number (58152720 = T₁₀₇₈₄).

The spelling of 242303240 in words is "two hundred forty-two million, three hundred three thousand, two hundred forty".