443742436 has 6 divisors (see below), whose sum is σ = 776549270. Its totient is φ = 221871216.

The previous prime is 443742421. The next prime is 443742461. The reversal of 443742436 is 634247344.

It can be written as a sum of positive squares in only one way, i.e., 417793600 + 25948836 = 20440^2 + 5094^2 .

It is a junction number, because it is equal to n+sod(n) for n = 443742395 and 443742404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55467801 + ... + 55467808.

Almost surely, 2^443742436 is an apocalyptic number.

It is an amenable number.

443742436 is a deficient number, since it is larger than the sum of its proper divisors (332806834).

443742436 is a wasteful number, since it uses less digits than its factorization.

443742436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110935613 (or 110935611 counting only the distinct ones).

The product of its digits is 193536, while the sum is 37.

The square root of 443742436 is about 21065.1948958466. The cubic root of 443742436 is about 762.7408171007.

The spelling of 443742436 in words is "four hundred forty-three million, seven hundred forty-two thousand, four hundred thirty-six".