242745574 has 4 divisors (see below), whose sum is σ = 364118364. Its totient is φ = 121372786.

The previous prime is 242745551. The next prime is 242745599. The reversal of 242745574 is 475547242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 475547242 = 2 ⋅237773621.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60686392 + ... + 60686395.

It is an arithmetic number, because the mean of its divisors is an integer number (91029591).

Almost surely, 2^242745574 is an apocalyptic number.

242745574 is a deficient number, since it is larger than the sum of its proper divisors (121372790).

242745574 is a wasteful number, since it uses less digits than its factorization.

242745574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121372789.

The product of its digits is 313600, while the sum is 40.

The square root of 242745574 is about 15580.2944131361. The cubic root of 242745574 is about 623.8072818052.

The spelling of 242745574 in words is "two hundred forty-two million, seven hundred forty-five thousand, five hundred seventy-four".