243633379 has 12 divisors (see below), whose sum is σ = 277033680. Its totient is φ = 213844400.

The previous prime is 243633353. The next prime is 243633413. The reversal of 243633379 is 973336342.

243633379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243633379 - 2⁵ = 243633347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243633349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31207 + ... + 38224.

It is an arithmetic number, because the mean of its divisors is an integer number (23086140).

Almost surely, 2^243633379 is an apocalyptic number.

243633379 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

243633379 is a deficient number, since it is larger than the sum of its proper divisors (33400301).

243633379 is a wasteful number, since it uses less digits than its factorization.

243633379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69482 (or 69471 counting only the distinct ones).

The product of its digits is 244944, while the sum is 40.

The square root of 243633379 is about 15608.7596880726. The cubic root of 243633379 is about 624.5668499590.

The spelling of 243633379 in words is "two hundred forty-three million, six hundred thirty-three thousand, three hundred seventy-nine".