343750 has 28 divisors (see below), whose sum is σ = 703116. Its totient is φ = 125000.

The previous prime is 343727. The next prime is 343769. The reversal of 343750 is 57343.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a nialpdrome in base 5.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 31245 + ... + 31255.

2³⁴³⁷⁵⁰ is an apocalyptic number.

343750 is an abundant number, since it is smaller than the sum of its proper divisors (359366).

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

343750 is an frugal number, since it uses more digits than its factorization.

343750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43 (or 18 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 343750 is about 586.3019699779. The cubic root of 343750 is about 70.0509832664.

Multiplying 343750 by its sum of digits (22), we get a square (7562500 = 2750²).

343750 divided by its sum of digits (22) gives a 6-th power (15625 = 5⁶).

The spelling of 343750 in words is "three hundred forty-three thousand, seven hundred fifty".