242595540 has 96 divisors (see below), whose sum is σ = 823374720. Its totient is φ = 58809600.

The previous prime is 242595539. The next prime is 242595547. The reversal of 242595540 is 45595242.

242595540 is a `hidden beast` number, since 2 + 4 + 25 + 95 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 242595495 and 242595504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242595547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14481 + ... + 26360.

It is an arithmetic number, because the mean of its divisors is an integer number (8576820).

Almost surely, 2^242595540 is an apocalyptic number.

242595540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242595540 is an abundant number, since it is smaller than the sum of its proper divisors (580779180).

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

242595540 is a wasteful number, since it uses less digits than its factorization.

242595540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40870 (or 40862 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 242595540 is about 15575.4788048394. The cubic root of 242595540 is about 623.6787362543.

The spelling of 242595540 in words is "two hundred forty-two million, five hundred ninety-five thousand, five hundred forty".