43421080 has 96 divisors (see below), whose sum is σ = 107533440. Its totient is φ = 15759360.

The previous prime is 43421071. The next prime is 43421083. The reversal of 43421080 is 8012434.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43421083) 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, 447592 + ... + 447688.

It is an arithmetic number, because the mean of its divisors is an integer number (1120140).

Almost surely, 2^43421080 is an apocalyptic number.

43421080 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 43421080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53766720).

43421080 is an abundant number, since it is smaller than the sum of its proper divisors (64112360).

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

43421080 is a wasteful number, since it uses less digits than its factorization.

43421080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 43421080 is about 6589.4673532843. The cubic root of 43421080 is about 351.4796676820.

The spelling of 43421080 in words is "forty-three million, four hundred twenty-one thousand, eighty".