1000442330 has 16 divisors (see below), whose sum is σ = 1817319240. Its totient is φ = 396505152.

The previous prime is 1000442309. The next prime is 1000442341. The reversal of 1000442330 is 332440001.

It can be written as a sum of positive squares in 4 ways, for example, as 957840601 + 42601729 = 30949^2 + 6527^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1000442299 and 1000442308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457829 + ... + 460008.

Almost surely, 2^1000442330 is an apocalyptic number.

1000442330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000442330 is a deficient number, since it is larger than the sum of its proper divisors (816876910).

1000442330 is a wasteful number, since it uses less digits than its factorization.

1000442330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917953.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1000442330 is about 31629.7696798443. The cubic root of 1000442330 is about 1000.1474215991.

Adding to 1000442330 its reverse (332440001), we get a palindrome (1332882331).

The spelling of 1000442330 in words is "one billion, four hundred forty-two thousand, three hundred thirty".