343433440 has 96 divisors (see below), whose sum is σ = 931875840. Its totient is φ = 117164544.

The previous prime is 343433429. The next prime is 343433443. The reversal of 343433440 is 44334343.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 343433399 and 343433408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343433443) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 267039 + ... + 268321.

It is an arithmetic number, because the mean of its divisors is an integer number (9707040).

Almost surely, 2^343433440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343433440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465937920).

343433440 is an abundant number, since it is smaller than the sum of its proper divisors (588442400).

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

343433440 is a wasteful number, since it uses less digits than its factorization.

343433440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 1536 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 28.

The square root of 343433440 is about 18531.9572630632. The cubic root of 343433440 is about 700.2947330289.

Adding to 343433440 its reverse (44334343), we get a palindrome (387767783).

The spelling of 343433440 in words is "three hundred forty-three million, four hundred thirty-three thousand, four hundred forty".