242672473 has 4 divisors (see below), whose sum is σ = 245399220. Its totient is φ = 239945728.

The previous prime is 242672453. The next prime is 242672491. The reversal of 242672473 is 374276242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 374276242 = 2 ⋅187138121.

It can be written as a sum of positive squares in 2 ways, for example, as 13816089 + 228856384 = 3717^2 + 15128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242672473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242672453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1363240 + ... + 1363417.

It is an arithmetic number, because the mean of its divisors is an integer number (61349805).

Almost surely, 2^242672473 is an apocalyptic number.

It is an amenable number.

242672473 is a deficient number, since it is larger than the sum of its proper divisors (2726747).

242672473 is an equidigital number, since it uses as much as digits as its factorization.

242672473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726746.

The product of its digits is 112896, while the sum is 37.

The square root of 242672473 is about 15577.9482923779. The cubic root of 242672473 is about 623.7446572314.

The spelling of 242672473 in words is "two hundred forty-two million, six hundred seventy-two thousand, four hundred seventy-three".