243401334 has 64 divisors (see below), whose sum is σ = 545875200. Its totient is φ = 71726720.

The previous prime is 243401299. The next prime is 243401363. The reversal of 243401334 is 433104342.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 520969 + ... + 521435.

It is an arithmetic number, because the mean of its divisors is an integer number (8529300).

Almost surely, 2^243401334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243401334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272937600).

243401334 is an abundant number, since it is smaller than the sum of its proper divisors (302473866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243401334 is a wasteful number, since it uses less digits than its factorization.

243401334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 243401334 is about 15601.3247514434. The cubic root of 243401334 is about 624.3685004950.

Adding to 243401334 its reverse (433104342), we get a palindrome (676505676).

The spelling of 243401334 in words is "two hundred forty-three million, four hundred one thousand, three hundred thirty-four".