242057477 has 4 divisors (see below), whose sum is σ = 243905376. Its totient is φ = 240209580.

The previous prime is 242057467. The next prime is 242057479. The reversal of 242057477 is 774750242.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242057477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242057477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242057479) 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, 923753 + ... + 924014.

It is an arithmetic number, because the mean of its divisors is an integer number (60976344).

Almost surely, 2^242057477 is an apocalyptic number.

It is an amenable number.

242057477 is a deficient number, since it is larger than the sum of its proper divisors (1847899).

242057477 is a wasteful number, since it uses less digits than its factorization.

242057477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847898.

The product of its (nonzero) digits is 109760, while the sum is 38.

The square root of 242057477 is about 15558.1964571733. The cubic root of 242057477 is about 623.2173003792.

The spelling of 242057477 in words is "two hundred forty-two million, fifty-seven thousand, four hundred seventy-seven".