343249980 has 72 divisors (see below), whose sum is σ = 993270096. Its totient is φ = 88565760.

The previous prime is 343249969. The next prime is 343249987. The reversal of 343249980 is 89942343.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343249987) 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, 54684 + ... + 60636.

It is an arithmetic number, because the mean of its divisors is an integer number (13795418).

Almost surely, 2^343249980 is an apocalyptic number.

343249980 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 343249980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496635048).

343249980 is an abundant number, since it is smaller than the sum of its proper divisors (650020116).

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

343249980 is a wasteful number, since it uses less digits than its factorization.

343249980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6027 (or 5994 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 343249980 is about 18527.0067738963. The cubic root of 343249980 is about 700.1700131263.

The spelling of 343249980 in words is "three hundred forty-three million, two hundred forty-nine thousand, nine hundred eighty".