4080426440 has 64 divisors (see below), whose sum is σ = 9552913200. Its totient is φ = 1566702592.

The previous prime is 4080426439. The next prime is 4080426443. The reversal of 4080426440 is 446240804.

It can be written as a sum of positive squares in 8 ways, for example, as 3717828676 + 362597764 = 60974^2 + 19042^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4080426397 and 4080426406.

It is not an unprimeable number, because it can be changed into a prime (4080426443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190514 + ... + 210846.

Almost surely, 2^4080426440 is an apocalyptic number.

4080426440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4080426440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4776456600).

4080426440 is an abundant number, since it is smaller than the sum of its proper divisors (5472486760).

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

4080426440 is a wasteful number, since it uses less digits than its factorization.

4080426440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20546 (or 20542 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 4080426440 is about 63878.2156920495. The cubic root of 4080426440 is about 1597.9696172644.

The spelling of 4080426440 in words is "four billion, eighty million, four hundred twenty-six thousand, four hundred forty".