242081487 has 8 divisors (see below), whose sum is σ = 358639280. Its totient is φ = 161387640.

The previous prime is 242081461. The next prime is 242081501. The reversal of 242081487 is 784180242.

It is not a de Polignac number, because 242081487 - 2⁶ = 242081423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242081447) 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, 4482964 + ... + 4483017.

It is an arithmetic number, because the mean of its divisors is an integer number (44829910).

Almost surely, 2^242081487 is an apocalyptic number.

242081487 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

242081487 is a deficient number, since it is larger than the sum of its proper divisors (116557793).

242081487 is an equidigital number, since it uses as much as digits as its factorization.

242081487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8965990 (or 8965984 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 242081487 is about 15558.9680570403. The cubic root of 242081487 is about 623.2379056129.

The spelling of 242081487 in words is "two hundred forty-two million, eighty-one thousand, four hundred eighty-seven".