440013130 has 16 divisors (see below), whose sum is σ = 805008744. Its totient is φ = 173119680.

The previous prime is 440013113. The next prime is 440013131. The reversal of 440013130 is 31310044.

It can be written as a sum of positive squares in 4 ways, for example, as 106110601 + 333902529 = 10301^2 + 18273^2 .

It is a super-2 number, since 2×440013130² = 387223109144793800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (440013131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360057 + ... + 361276.

Almost surely, 2^440013130 is an apocalyptic number.

440013130 is a deficient number, since it is larger than the sum of its proper divisors (364995614).

440013130 is a wasteful number, since it uses less digits than its factorization.

440013130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721401.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 440013130 is about 20976.4899351631. The cubic root of 440013130 is about 760.5980576476.

Adding to 440013130 its reverse (31310044), we get a palindrome (471323174).

The spelling of 440013130 in words is "four hundred forty million, thirteen thousand, one hundred thirty".