343499072 has 28 divisors (see below), whose sum is σ = 779007840. Its totient is φ = 147213696.

The previous prime is 343499071. The next prime is 343499111. The reversal of 343499072 is 270994343.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×343499072² = 235983224929722368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343499071) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 382922 + ... + 383817.

Almost surely, 2^343499072 is an apocalyptic number.

343499072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

343499072 is an abundant number, since it is smaller than the sum of its proper divisors (435508768).

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

343499072 is an equidigital number, since it uses as much as digits as its factorization.

343499072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766758 (or 766748 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 343499072 is about 18533.7279574294. The cubic root of 343499072 is about 700.3393402328.

The spelling of 343499072 in words is "three hundred forty-three million, four hundred ninety-nine thousand, seventy-two".