242746577 has 4 divisors (see below), whose sum is σ = 253300800. Its totient is φ = 232192356.

The previous prime is 242746573. The next prime is 242746579. The reversal of 242746577 is 775647242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 775647242 = 2 ⋅387823621.

It is a cyclic number.

It is not a de Polignac number, because 242746577 - 2² = 242746573 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242746573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5277077 + ... + 5277122.

It is an arithmetic number, because the mean of its divisors is an integer number (63325200).

Almost surely, 2^242746577 is an apocalyptic number.

It is an amenable number.

242746577 is a deficient number, since it is larger than the sum of its proper divisors (10554223).

242746577 is a wasteful number, since it uses less digits than its factorization.

242746577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10554222.

The product of its digits is 658560, while the sum is 44.

The square root of 242746577 is about 15580.3266011981. The cubic root of 242746577 is about 623.8081409734.

The spelling of 242746577 in words is "two hundred forty-two million, seven hundred forty-six thousand, five hundred seventy-seven".