4444001440 has 48 divisors (see below), whose sum is σ = 10542609000. Its totient is φ = 1770209280.

The previous prime is 4444001413. The next prime is 4444001459. The reversal of 4444001440 is 441004444.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3580346896 + 863654544 = 59836^2 + 29388^2 .

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, 19065 + ... + 96184.

Almost surely, 2^4444001440 is an apocalyptic number.

4444001440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4444001440 is an abundant number, since it is smaller than the sum of its proper divisors (6098607560).

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

4444001440 is a wasteful number, since it uses less digits than its factorization.

4444001440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115505 (or 115497 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 4444001440 is about 66663.3440505350. The cubic root of 4444001440 is about 1644.0867539264.

Adding to 4444001440 its reverse (441004444), we get a palindrome (4885005884).

The spelling of 4444001440 in words is "four billion, four hundred forty-four million, one thousand, four hundred forty".