343222401 has 16 divisors (see below), whose sum is σ = 488096064. Its totient is φ = 213778944.

The previous prime is 343222381. The next prime is 343222409. The reversal of 343222401 is 104222343.

It is not a de Polignac number, because 343222401 - 2⁷ = 343222273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (343222409) 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, 17575 + ... + 31548.

It is an arithmetic number, because the mean of its divisors is an integer number (30506004).

Almost surely, 2^343222401 is an apocalyptic number.

It is an amenable number.

343222401 is a deficient number, since it is larger than the sum of its proper divisors (144873663).

343222401 is a wasteful number, since it uses less digits than its factorization.

343222401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49280.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 343222401 is about 18526.2624671033. The cubic root of 343222401 is about 700.1512605096.

Adding to 343222401 its reverse (104222343), we get a palindrome (447444744).

The spelling of 343222401 in words is "three hundred forty-three million, two hundred twenty-two thousand, four hundred one".