343021404 has 96 divisors (see below), whose sum is σ = 894136320. Its totient is φ = 101483200.

The previous prime is 343021387. The next prime is 343021411. The reversal of 343021404 is 404120343.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1435117 + ... + 1435355.

It is an arithmetic number, because the mean of its divisors is an integer number (9313920).

Almost surely, 2^343021404 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 343021404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447068160).

343021404 is an abundant number, since it is smaller than the sum of its proper divisors (551114916).

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

343021404 is a wasteful number, since it uses less digits than its factorization.

343021404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 469 counting only the distinct ones).

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

The square root of 343021404 is about 18520.8370221219. The cubic root of 343021404 is about 700.0145602414.

Adding to 343021404 its reverse (404120343), we get a palindrome (747141747).

The spelling of 343021404 in words is "three hundred forty-three million, twenty-one thousand, four hundred four".