4500440040 has 64 divisors (see below), whose sum is σ = 13555200960. Its totient is φ = 1195328000.

The previous prime is 4500440003. The next prime is 4500440083. The reversal of 4500440040 is 400440054.

It is a junction number, because it is equal to n+sod(n) for n = 4500439989 and 4500440016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44589 + ... + 104828.

It is an arithmetic number, because the mean of its divisors is an integer number (211800015).

Almost surely, 2^4500440040 is an apocalyptic number.

4500440040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4500440040 is an abundant number, since it is smaller than the sum of its proper divisors (9054760920).

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

4500440040 is a wasteful number, since it uses less digits than its factorization.

4500440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149682 (or 149678 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 4500440040 is about 67085.3191093253. The cubic root of 4500440040 is about 1651.0174367698.

Adding to 4500440040 its reverse (400440054), we get a palindrome (4900880094).

The spelling of 4500440040 in words is "four billion, five hundred million, four hundred forty thousand, forty".