343487390399 has 8 divisors (see below), whose sum is σ = 351707046912. Its totient is φ = 335361673080.

The previous prime is 343487390317. The next prime is 343487390437. The reversal of 343487390399 is 993093784343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 343487390399 - 2¹⁶ = 343487324863 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 (343487390899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23477399 + ... + 23492024.

It is an arithmetic number, because the mean of its divisors is an integer number (43963380864).

Almost surely, 2^343487390399 is an apocalyptic number.

343487390399 is a deficient number, since it is larger than the sum of its proper divisors (8219656513).

343487390399 is a wasteful number, since it uses less digits than its factorization.

343487390399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46969597.

The product of its (nonzero) digits is 52907904, while the sum is 62.

The spelling of 343487390399 in words is "three hundred forty-three billion, four hundred eighty-seven million, three hundred ninety thousand, three hundred ninety-nine".