43430000 has 100 divisors (see below), whose sum is σ = 108658968. Its totient is φ = 16800000.

The previous prime is 43429993. The next prime is 43430017. The reversal of 43430000 is 3434.

It is a tau number, because it is divible by the number of its divisors (100).

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 19 ways as a sum of consecutive naturals, for example, 429950 + ... + 430050.

Almost surely, 2^43430000 is an apocalyptic number.

43430000 is a gapful number since it is divisible by the number (40) 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 43430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54329484).

43430000 is an abundant number, since it is smaller than the sum of its proper divisors (65228968).

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

43430000 is a wasteful number, since it uses less digits than its factorization.

43430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 43430000 is about 6590.1441562382. The cubic root of 43430000 is about 351.5037342104.

Adding to 43430000 its reverse (3434), we get a palindrome (43433434).

It can be divided in two parts, 43 and 430000, that multiplied together give a square (18490000 = 4300²).

The spelling of 43430000 in words is "forty-three million, four hundred thirty thousand".