353243340 has 144 divisors (see below), whose sum is σ = 1141620480. Its totient is φ = 88104960.

The previous prime is 353243321. The next prime is 353243347. The reversal of 353243340 is 43342353.

353243340 = 354² + 355² + ... + 1033².

It is a happy number.

353243340 is a `hidden beast` number, since 3 + 5 + 324 + 334 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (353243347) 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 47 ways as a sum of consecutive naturals, for example, 737221 + ... + 737699.

It is an arithmetic number, because the mean of its divisors is an integer number (7927920).

Almost surely, 2^353243340 is an apocalyptic number.

353243340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 353243340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570810240).

353243340 is an abundant number, since it is smaller than the sum of its proper divisors (788377140).

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

353243340 is a wasteful number, since it uses less digits than its factorization.

353243340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

The square root of 353243340 is about 18794.7689530890. The cubic root of 353243340 is about 706.9000203392.

Adding to 353243340 its reverse (43342353), we get a palindrome (396585693).

The spelling of 353243340 in words is "three hundred fifty-three million, two hundred forty-three thousand, three hundred forty".