243700379 has 4 divisors (see below), whose sum is σ = 262446576. Its totient is φ = 224954184.

The previous prime is 243700349. The next prime is 243700399. The reversal of 243700379 is 973007342.

243700379 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 not a de Polignac number, because 243700379 - 2¹² = 243696283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243700309) 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, 9373079 + ... + 9373104.

It is an arithmetic number, because the mean of its divisors is an integer number (65611644).

Almost surely, 2^243700379 is an apocalyptic number.

243700379 is a deficient number, since it is larger than the sum of its proper divisors (18746197).

243700379 is a wasteful number, since it uses less digits than its factorization.

243700379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18746196.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 243700379 is about 15610.9057712869. The cubic root of 243700379 is about 624.6240973742.

The spelling of 243700379 in words is "two hundred forty-three million, seven hundred thousand, three hundred seventy-nine".