242758971 has 64 divisors (see below), whose sum is σ = 458035200. Its totient is φ = 123596928.

The previous prime is 242758927. The next prime is 242758973. The reversal of 242758971 is 179857242.

It is a happy number.

It is not a de Polignac number, because 242758971 - 2⁶ = 242758907 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (242758973) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69550 + ... + 72956.

It is an arithmetic number, because the mean of its divisors is an integer number (7156800).

Almost surely, 2^242758971 is an apocalyptic number.

242758971 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

242758971 is a deficient number, since it is larger than the sum of its proper divisors (215276229).

242758971 is a wasteful number, since it uses less digits than its factorization.

242758971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465 (or 3459 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 242758971 is about 15580.7243413135. The cubic root of 242758971 is about 623.8187574588.

The spelling of 242758971 in words is "two hundred forty-two million, seven hundred fifty-eight thousand, nine hundred seventy-one".