443149420 has 96 divisors (see below), whose sum is σ = 1089639936. Its totient is φ = 148262400.

The previous prime is 443149409. The next prime is 443149429. The reversal of 443149420 is 24941344.

It is not an unprimeable number, because it can be changed into a prime (443149429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1338655 + ... + 1338985.

It is an arithmetic number, because the mean of its divisors is an integer number (11350416).

Almost surely, 2^443149420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 443149420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544819968).

443149420 is an abundant number, since it is smaller than the sum of its proper divisors (646490516).

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

443149420 is a wasteful number, since it uses less digits than its factorization.

443149420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 443149420 is about 21051.1144598095. The cubic root of 443149420 is about 762.4008908181.

The spelling of 443149420 in words is "four hundred forty-three million, one hundred forty-nine thousand, four hundred twenty".