440012530 has 16 divisors (see below), whose sum is σ = 838612440. Its totient is φ = 165651712.

The previous prime is 440012509. The next prime is 440012549. The reversal of 440012530 is 35210044.

It can be written as a sum of positive squares in 4 ways, for example, as 382085209 + 57927321 = 19547^2 + 7611^2 .

It is a super-2 number, since 2×440012530² = 387222053114001800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 440012498 and 440012507.

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, 1293985 + ... + 1294324.

Almost surely, 2^440012530 is an apocalyptic number.

440012530 is a deficient number, since it is larger than the sum of its proper divisors (398599910).

440012530 is a wasteful number, since it uses less digits than its factorization.

440012530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588333.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 440012530 is about 20976.4756334328. The cubic root of 440012530 is about 760.5977119314.

Adding to 440012530 its reverse (35210044), we get a palindrome (475222574).

The spelling of 440012530 in words is "four hundred forty million, twelve thousand, five hundred thirty".