242495487258 has 32 divisors (see below), whose sum is σ = 517707210240. Its totient is φ = 75498963120.

The previous prime is 242495487251. The next prime is 242495487281. The reversal of 242495487258 is 852784594242.

It is a happy number.

It is a super-2 number, since 2×242495487258² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (242495487251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14971860 + ... + 14988047.

It is an arithmetic number, because the mean of its divisors is an integer number (16178350320).

Almost surely, 2^242495487258 is an apocalyptic number.

242495487258 is an abundant number, since it is smaller than the sum of its proper divisors (275211722982).

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

242495487258 is a wasteful number, since it uses less digits than its factorization.

242495487258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29960002.

The product of its digits is 51609600, while the sum is 60.

The spelling of 242495487258 in words is "two hundred forty-two billion, four hundred ninety-five million, four hundred eighty-seven thousand, two hundred fifty-eight".