4420350640 has 40 divisors (see below), whose sum is σ = 10287475488. Its totient is φ = 1766392320.

The previous prime is 4420350617. The next prime is 4420350643. The reversal of 4420350640 is 460530244.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 4420350599 and 4420350608.

It is not an unprimeable number, because it can be changed into a prime (4420350643) 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, 55684 + ... + 109276.

Almost surely, 2^4420350640 is an apocalyptic number.

4420350640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4420350640 is an abundant number, since it is smaller than the sum of its proper divisors (5867124848).

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

4420350640 is a wasteful number, since it uses less digits than its factorization.

4420350640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54637 (or 54631 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 4420350640 is about 66485.7175640002. The cubic root of 4420350640 is about 1641.1649763463.

Adding to 4420350640 its reverse (460530244), we get a palindrome (4880880884).

The spelling of 4420350640 in words is "four billion, four hundred twenty million, three hundred fifty thousand, six hundred forty".