343356420 has 96 divisors (see below), whose sum is σ = 1094446080. Its totient is φ = 79615360.

The previous prime is 343356413. The next prime is 343356421. The reversal of 343356420 is 24653343.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (343356421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3871 + ... + 26489.

It is an arithmetic number, because the mean of its divisors is an integer number (11400480).

Almost surely, 2^343356420 is an apocalyptic number.

343356420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343356420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547223040).

343356420 is an abundant number, since it is smaller than the sum of its proper divisors (751089660).

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

343356420 is a wasteful number, since it uses less digits than its factorization.

343356420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22665 (or 22663 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

The square root of 343356420 is about 18529.8791145544. The cubic root of 343356420 is about 700.2423786505.

It can be divided in two parts, 34335 and 6420, that added together give a triangular number (40755 = T₂₈₅).

The spelling of 343356420 in words is "three hundred forty-three million, three hundred fifty-six thousand, four hundred twenty".