243370427 has 4 divisors (see below), whose sum is σ = 243442920. Its totient is φ = 243297936.

The previous prime is 243370409. The next prime is 243370441. The reversal of 243370427 is 724073342.

243370427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243370427 - 2⁶ = 243370363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243370393 and 243370402.

It is not an unprimeable number, because it can be changed into a prime (243370327) 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, 30953 + ... + 38010.

It is an arithmetic number, because the mean of its divisors is an integer number (60860730).

Almost surely, 2^243370427 is an apocalyptic number.

243370427 is a deficient number, since it is larger than the sum of its proper divisors (72493).

243370427 is an equidigital number, since it uses as much as digits as its factorization.

243370427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72492.

The product of its (nonzero) digits is 28224, while the sum is 32.

The square root of 243370427 is about 15600.3341951383. The cubic root of 243370427 is about 624.3420720256.

The spelling of 243370427 in words is "two hundred forty-three million, three hundred seventy thousand, four hundred twenty-seven".