4400505512 has 16 divisors (see below), whose sum is σ = 8885636340. Its totient is φ = 2031002496.

The previous prime is 4400505511. The next prime is 4400505517. The reversal of 4400505512 is 2155050044.

It can be written as a sum of positive squares in 2 ways, for example, as 3575322436 + 825183076 = 59794^2 + 28726^2 .

It is a super-2 number, since 2×4400505512² = 38728897522284764288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (4400505511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21156173 + ... + 21156380.

Almost surely, 2^4400505512 is an apocalyptic number.

It is an amenable number.

4400505512 is an abundant number, since it is smaller than the sum of its proper divisors (4485130828).

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

4400505512 is a wasteful number, since it uses less digits than its factorization.

4400505512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42312572 (or 42312568 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 4400505512 is about 66336.3061377403. The cubic root of 4400505512 is about 1638.7052928488.

Adding to 4400505512 its reverse (2155050044), we get a palindrome (6555555556).

The spelling of 4400505512 in words is "four billion, four hundred million, five hundred five thousand, five hundred twelve".