242260640 has 48 divisors (see below), whose sum is σ = 602471520. Its totient is φ = 91802880.

The previous prime is 242260639. The next prime is 242260643. The reversal of 242260640 is 46062242.

It is not an unprimeable number, because it can be changed into a prime (242260643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36806 + ... + 42885.

It is an arithmetic number, because the mean of its divisors is an integer number (12551490).

Almost surely, 2^242260640 is an apocalyptic number.

242260640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242260640 is an abundant number, since it is smaller than the sum of its proper divisors (360210880).

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

242260640 is a wasteful number, since it uses less digits than its factorization.

242260640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79725 (or 79717 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 242260640 is about 15564.7242185655. The cubic root of 242260640 is about 623.3916106176.

The spelling of 242260640 in words is "two hundred forty-two million, two hundred sixty thousand, six hundred forty".