242532640 has 96 divisors (see below), whose sum is σ = 662981760. Its totient is φ = 82120704.

The previous prime is 242532629. The next prime is 242532683. The reversal of 242532640 is 46235242.

242532640 is digitally balanced in base 3, 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 (28).

It is a junction number, because it is equal to n+sod(n) for n = 242532599 and 242532608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91656 + ... + 94264.

It is an arithmetic number, because the mean of its divisors is an integer number (6906060).

Almost surely, 2^242532640 is an apocalyptic number.

242532640 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 242532640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331490880).

242532640 is an abundant number, since it is smaller than the sum of its proper divisors (420449120).

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

242532640 is a wasteful number, since it uses less digits than its factorization.

242532640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2714 (or 2706 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 242532640 is about 15573.4594743750. The cubic root of 242532640 is about 623.6248292679.

Adding to 242532640 its reverse (46235242), we get a palindrome (288767882).

The spelling of 242532640 in words is "two hundred forty-two million, five hundred thirty-two thousand, six hundred forty".