343203444 has 18 divisors (see below), whose sum is σ = 867542130. Its totient is φ = 114401136.

The previous prime is 343203431. The next prime is 343203457. The reversal of 343203444 is 444302343.

It is an interprime number because it is at equal distance from previous prime (343203431) and next prime (343203457).

It can be written as a sum of positive squares in only one way, i.e., 207014544 + 136188900 = 14388^2 + 11670^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×343203444² = 235577207946922272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4766679 + ... + 4766750.

It is an arithmetic number, because the mean of its divisors is an integer number (48196785).

Almost surely, 2^343203444 is an apocalyptic number.

It is an amenable number.

343203444 is an abundant number, since it is smaller than the sum of its proper divisors (524338686).

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

343203444 is a wasteful number, since it uses less digits than its factorization.

343203444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9533439 (or 9533434 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

The square root of 343203444 is about 18525.7508349864. The cubic root of 343203444 is about 700.1383699253.

Adding to 343203444 its reverse (444302343), we get a palindrome (787505787).

The spelling of 343203444 in words is "three hundred forty-three million, two hundred three thousand, four hundred forty-four".