4425861840 has 40 divisors (see below), whose sum is σ = 13720172448. Its totient is φ = 1180229760.

The previous prime is 4425861827. The next prime is 4425861859. The reversal of 4425861840 is 481685244.

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 = 4425861792 and 4425861801.

It is a congruent number.

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, 9220306 + ... + 9220785.

Almost surely, 2^4425861840 is an apocalyptic number.

4425861840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4425861840 is an abundant number, since it is smaller than the sum of its proper divisors (9294310608).

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

4425861840 is a wasteful number, since it uses less digits than its factorization.

4425861840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18441107 (or 18441101 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The square root of 4425861840 is about 66527.1511489858. The cubic root of 4425861840 is about 1641.8467497172.

The spelling of 4425861840 in words is "four billion, four hundred twenty-five million, eight hundred sixty-one thousand, eight hundred forty".