4025404240 has 120 divisors (see below), whose sum is σ = 11056087008. Its totient is φ = 1351134720.

The previous prime is 4025404237. The next prime is 4025404241. The reversal of 4025404240 is 424045204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4025404241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135187 + ... + 162253.

Almost surely, 2^4025404240 is an apocalyptic number.

4025404240 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 4025404240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5528043504).

4025404240 is an abundant number, since it is smaller than the sum of its proper divisors (7030682768).

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

4025404240 is a wasteful number, since it uses less digits than its factorization.

4025404240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27117 (or 27098 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 4025404240 is about 63446.0734797671. The cubic root of 4025404240 is about 1590.7545223673.

Adding to 4025404240 its reverse (424045204), we get a palindrome (4449449444).

The spelling of 4025404240 in words is "four billion, twenty-five million, four hundred four thousand, two hundred forty".