343401653 has 32 divisors (see below), whose sum is σ = 414720000. Its totient is φ = 284086320.

The previous prime is 343401647. The next prime is 343401659. The reversal of 343401653 is 356104343.

It is an interprime number because it is at equal distance from previous prime (343401647) and next prime (343401659).

It is not a de Polignac number, because 343401653 - 2¹⁶ = 343336117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343401659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1436708 + ... + 1436946.

It is an arithmetic number, because the mean of its divisors is an integer number (12960000).

Almost surely, 2^343401653 is an apocalyptic number.

It is an amenable number.

343401653 is a deficient number, since it is larger than the sum of its proper divisors (71318347).

343401653 is an equidigital number, since it uses as much as digits as its factorization.

343401653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 343401653 is about 18531.0996165905. The cubic root of 343401653 is about 700.2731267506.

Adding to 343401653 its reverse (356104343), we get a palindrome (699505996).

The spelling of 343401653 in words is "three hundred forty-three million, four hundred one thousand, six hundred fifty-three".