242487747 has 24 divisors (see below), whose sum is σ = 370406400. Its totient is φ = 152439408.

The previous prime is 242487743. The next prime is 242487757. The reversal of 242487747 is 747784242.

It is not a de Polignac number, because 242487747 - 2² = 242487743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242487743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34954 + ... + 41312.

It is an arithmetic number, because the mean of its divisors is an integer number (15433600).

Almost surely, 2^242487747 is an apocalyptic number.

242487747 is a deficient number, since it is larger than the sum of its proper divisors (127918653).

242487747 is a wasteful number, since it uses less digits than its factorization.

242487747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6607 (or 6604 counting only the distinct ones).

The product of its digits is 702464, while the sum is 45.

The square root of 242487747 is about 15572.0180773078. The cubic root of 242487747 is about 623.5863490630.

The spelling of 242487747 in words is "two hundred forty-two million, four hundred eighty-seven thousand, seven hundred forty-seven".