343563420 has 96 divisors (see below), whose sum is σ = 1025353728. Its totient is φ = 85752832.

The previous prime is 343563419. The next prime is 343563439. The reversal of 343563420 is 24365343.

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

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, 62212 + ... + 67508.

It is an arithmetic number, because the mean of its divisors is an integer number (10680768).

Almost surely, 2^343563420 is an apocalyptic number.

343563420 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 343563420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (512676864).

343563420 is an abundant number, since it is smaller than the sum of its proper divisors (681790308).

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

343563420 is a wasteful number, since it uses less digits than its factorization.

343563420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5379 (or 5377 counting only the distinct ones).

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

The square root of 343563420 is about 18535.4638463676. The cubic root of 343563420 is about 700.3830692418.

The spelling of 343563420 in words is "three hundred forty-three million, five hundred sixty-three thousand, four hundred twenty".