243400034 has 8 divisors (see below), whose sum is σ = 376877568. Its totient is φ = 117774180.

The previous prime is 243399997. The next prime is 243400043. The reversal of 243400034 is 430004342.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×243400034³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243399979 and 243400015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1962842 + ... + 1962965.

It is an arithmetic number, because the mean of its divisors is an integer number (47109696).

Almost surely, 2^243400034 is an apocalyptic number.

243400034 is a deficient number, since it is larger than the sum of its proper divisors (133477534).

243400034 is a wasteful number, since it uses less digits than its factorization.

243400034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925840.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 243400034 is about 15601.2830882591. The cubic root of 243400034 is about 624.3673889145.

Adding to 243400034 its reverse (430004342), we get a palindrome (673404376).

The spelling of 243400034 in words is "two hundred forty-three million, four hundred thousand, thirty-four".