242524140 has 24 divisors (see below), whose sum is σ = 679067760. Its totient is φ = 64673088.

The previous prime is 242524127. The next prime is 242524141. The reversal of 242524140 is 41425242.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 242524140.

It is not an unprimeable number, because it can be changed into a prime (242524141) 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, 2020975 + ... + 2021094.

It is an arithmetic number, because the mean of its divisors is an integer number (28294490).

Almost surely, 2^242524140 is an apocalyptic number.

242524140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242524140 is an abundant number, since it is smaller than the sum of its proper divisors (436543620).

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

242524140 is a wasteful number, since it uses less digits than its factorization.

242524140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4042081 (or 4042079 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 242524140 is about 15573.1865717971. The cubic root of 242524140 is about 623.6175438252.

Adding to 242524140 its reverse (41425242), we get a palindrome (283949382).

It can be divided in two parts, 2425 and 24140, that added together give a triangular number (26565 = T₂₃₀).

The spelling of 242524140 in words is "two hundred forty-two million, five hundred twenty-four thousand, one hundred forty".