242464487 has 4 divisors (see below), whose sum is σ = 248103240. Its totient is φ = 236825736.

The previous prime is 242464477. The next prime is 242464499. The reversal of 242464487 is 784464242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242464487 - 2⁸ = 242464231 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 (242464457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2819312 + ... + 2819397.

It is an arithmetic number, because the mean of its divisors is an integer number (62025810).

Almost surely, 2^242464487 is an apocalyptic number.

242464487 is a deficient number, since it is larger than the sum of its proper divisors (5638753).

242464487 is an equidigital number, since it uses as much as digits as its factorization.

242464487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5638752.

The product of its digits is 344064, while the sum is 41.

The square root of 242464487 is about 15571.2712069375. The cubic root of 242464487 is about 623.5664097981.

The spelling of 242464487 in words is "two hundred forty-two million, four hundred sixty-four thousand, four hundred eighty-seven".