242980647 has 64 divisors (see below), whose sum is σ = 421908480. Its totient is φ = 120927744.

The previous prime is 242980613. The next prime is 242980651. The reversal of 242980647 is 746089242.

It is not a de Polignac number, because 242980647 - 2⁷ = 242980519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242980599 and 242980608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242980657) 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, 371773 + ... + 372425.

It is an arithmetic number, because the mean of its divisors is an integer number (6592320).

Almost surely, 2^242980647 is an apocalyptic number.

242980647 is a deficient number, since it is larger than the sum of its proper divisors (178927833).

242980647 is a wasteful number, since it uses less digits than its factorization.

242980647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 242980647 is about 15587.8365079956. The cubic root of 242980647 is about 624.0085802773.

The spelling of 242980647 in words is "two hundred forty-two million, nine hundred eighty thousand, six hundred forty-seven".