243734379 has 24 divisors (see below), whose sum is σ = 379012608. Its totient is φ = 138917520.

The previous prime is 243734377. The next prime is 243734411. The reversal of 243734379 is 973437342.

It is not a de Polignac number, because 243734379 - 2¹ = 243734377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243734379.

It is not an unprimeable number, because it can be changed into a prime (243734377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61434 + ... + 65280.

It is an arithmetic number, because the mean of its divisors is an integer number (15792192).

Almost surely, 2^243734379 is an apocalyptic number.

243734379 is a deficient number, since it is larger than the sum of its proper divisors (135278229).

243734379 is a wasteful number, since it uses less digits than its factorization.

243734379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4295 (or 4288 counting only the distinct ones).

The product of its digits is 381024, while the sum is 42.

The square root of 243734379 is about 15611.9947156025. The cubic root of 243734379 is about 624.6531442881.

The spelling of 243734379 in words is "two hundred forty-three million, seven hundred thirty-four thousand, three hundred seventy-nine".