343342428 has 72 divisors (see below), whose sum is σ = 946423296. Its totient is φ = 96033600.

The previous prime is 343342423. The next prime is 343342429. The reversal of 343342428 is 824243343.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343342423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14613 + ... + 30003.

It is an arithmetic number, because the mean of its divisors is an integer number (13144768).

Almost surely, 2^343342428 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 343342428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473211648).

343342428 is an abundant number, since it is smaller than the sum of its proper divisors (603080868).

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

343342428 is a wasteful number, since it uses less digits than its factorization.

343342428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15435 (or 15420 counting only the distinct ones).

The product of its digits is 55296, while the sum is 33.

The square root of 343342428 is about 18529.5015583258. The cubic root of 343342428 is about 700.2328667421.

The spelling of 343342428 in words is "three hundred forty-three million, three hundred forty-two thousand, four hundred twenty-eight".