4400040648 has 32 divisors (see below), whose sum is σ = 11011419360. Its totient is φ = 1465171200.

The previous prime is 4400040647. The next prime is 4400040649. The reversal of 4400040648 is 8460400044.

It is an interprime number because it is at equal distance from previous prime (4400040647) and next prime (4400040649).

It is a super-3 number, since 3×4400040648³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (4400040647) 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, 70378 + ... + 117273.

It is an arithmetic number, because the mean of its divisors is an integer number (344106855).

Almost surely, 2^4400040648 is an apocalyptic number.

It is an amenable number.

4400040648 is an abundant number, since it is smaller than the sum of its proper divisors (6611378712).

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

4400040648 is a wasteful number, since it uses less digits than its factorization.

4400040648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188637 (or 188633 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 4400040648 is about 66332.8022022287. The cubic root of 4400040648 is about 1638.6475872117.

It can be divided in two parts, 44000 and 40648, that added together give a palindrome (84648).

The spelling of 4400040648 in words is "four billion, four hundred million, forty thousand, six hundred forty-eight".