242230640 has 40 divisors (see below), whose sum is σ = 565315008. Its totient is φ = 96526080.

The previous prime is 242230619. The next prime is 242230657. The reversal of 242230640 is 46032242.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16094 + ... + 27266.

Almost surely, 2^242230640 is an apocalyptic number.

242230640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242230640 is an abundant number, since it is smaller than the sum of its proper divisors (323084368).

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

242230640 is a wasteful number, since it uses less digits than its factorization.

242230640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11457 (or 11451 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 242230640 is about 15563.7604710430. The cubic root of 242230640 is about 623.3658772857.

Adding to 242230640 its reverse (46032242), we get a palindrome (288262882).

The spelling of 242230640 in words is "two hundred forty-two million, two hundred thirty thousand, six hundred forty".